Periodic Table Elements

silver

130

 Symbol: Ag
 Atomic number: 47
 Atomic weight: 107.8682
discovered by unknown. Has been known since ancient times.
One of the first elements ever known.

Carbon

130

Dangerous when Pure, Carbon is known to the Ancients and the person who found it is truthfully unknown, Being a solid at room temperature, and found in Nature, it has a total of 6 Protons, Neutrons, and Electrons.

Sulfur

130

1. Protons – 16
   
2. Electrons – 16
3. Neutrons – 16
4. Discover - unknown 5.what year discovered – known to the ancients
5. gas solid or liquid – solid
6. man made or nature – nature
7. deadly or not deadly - possible

Iron

130

1. Protons – 26
   
2. Electrons – 26
3. Neutrons – 30
4. Discover - Unknown 5.what year discovered - Known To The Ancients
5. gas solid or liquid – Solid
6. man made or nature – Nature
7. deadly or not deadly – Can be.

Copper

130

1. Protons – 29
2. Electrons – 29
3. Neutrons – 35
4. Discover - Unknown 5.what year discovered – known to the ancients
5. gas solid or liquid - solid
6. man made or nature - nature
7. deadly or not deadly – not deadly

Arsenic

130

1. Protons – 33
2. Electrons – 33
3. Neutrons – 42
4. Discover - Unknown 5.what year discovered – known to the ancients
5. gas solid or liquid – Solid
6. man made or nature – Nature
7. deadly or not deadly – Deadly

Tin

130

 Symbol: Sn
 Atomic number: 50
 Atomic weight: 118.710
discovered by unknown. Has been known since ancient times.

Antimony

130

 Symbol: Sb
 Atomic number: 51
 Atomic weight: 121.760
 Was discovered by unknown. Has been known since ancient times.

Gold

130

 Symbol: Au
 Atomic number: 79
 Atomic weight: 196.966569
 Discovered by unknown. Has been known since ancients times.

Mercury

130

 Symbol: Hg
 Atomic number: 80
 Atomic weight: 200.59
 Was discovered by Unknown. Has been known since ancient times.

Bismuth

130

Symbol: Bi
Atomic number: 83
Atomic Weight: 208.98040
Was discovered by unknown. known since ancient times.

Lead

130

Symbol: Pb
Atomic Number: 82
Atomic Weight: 207.2
Was discovered by unknown. Known since ancient times.

Phosphorous

Oct 30, 1669

1. Protons – 15
2. Electrons – 15
3. Neutrons – 16
4. Discover – Hennig Brand 5.what year discovered – 1669
5. gas solid or liquid – Solid
6. man made or nature - Nature
7. deadly or not deadly – White phosphorus is highly toxic. Skin contact can result in severe burns. Red phosphorus (provided it is not contaminated with white phosphorus) is considered non-toxic.

Platinum

Oct 30, 1735

 Symbol: Pt
 Atomic number: 78
 Atomic weight: 195.084
 Was discovered by Antonio de Ulloa at 1735 in South America.

Cobalt

Oct 30, 1737

1. Protons – 27
   
2. Electrons – 27
3. Neutrons – 32
4. Discover – George Brandt 5.what year discovered – 1737
5. gas solid or liquid – Solid
6. man made or nature – Nature
7. deadly or not deadly- No

Zinc

Oct 30, 1746

1. Protons – 30
2. Electrons – 30
3. Neutrons – 35
4. Discover – Andreas Marggraf 5.what year discovered – 1746
5. gas solid or liquid – solid
6. man made or nature – Man-Made
7. deadly or not deadly – no

Nickel

Oct 30, 1751

1. Protons – 28
   
2. Electrons – 28
3. Neutrons – 31
4. Discover - Alex Cronstedt 5.what year discovered – 1751
5. gas solid or liquid – solid
6. man made or nature - nature
7. deadly or not deadly – not deadly

Hydrogen

Oct 30, 1766

It has 1 Proton and Electron with no Neutrons, it also was found in 1766 by a man named Henry Cavendish. It is extremly flamable, which makes it deadly.

Nitrogen

Oct 30, 1772

Having direct contact with Nitrogen causes severe frostbite on the skin, which makes Nitrogen possibly painful, It has 7 Protons, Neutrons, and Electrons, discovered in 1772 by Daniel Rutherford, it is a gas at room temperature and is man-made.

Chlorine

Oct 30, 1774

1. Protons – 17
2. Electrons – 17
3. Neutrons – 18
4. Discover – Carl Wilhelm Sheele 5.what year discovered – 1774
5. gas solid or liquid – gas
6. man made or nature – Man-Made
7. deadly or not deadly – irritates the skin, the eyes and the respiratory system.

Manganese

Oct 30, 1774

1. Protons – 25
2. Electrons – 25
3. Neutrons – 30
4. Discover – Johann Gahn 5.what year discovered – 1774
5. gas solid or liquid – Solid
6. man made or nature – Nature
7. deadly or not deadly – no

Oxygen

Oct 30, 1774

Considering that we breath in oxygen to breath, oxygen isn't dangerous, it has 8 Protons, Neutrons, and Electrons. Discovered in 1774 by Joseph Priestly, it is a gas and found in Nature.

Molybdenum

Oct 30, 1781

 Symbol: Mo
 Atomic number: 42
 Atomic weight: 95.96
discovered by Carl William Scheele at 1781 in Sweden.

Tungsten

Oct 30, 1783

 Symbol: W
 Atomic number: 74
 Atomic weight: 183.84
 Was discovered by Fausto and Juan Jose de Elhuyar at 1783 in Spain.

Tellurium

Oct 30, 1783

 Was discovered by Franz Joseph Muller von Reichstein at 1783 in Romania.
 Symbol: Te
 Atomic number: 52
 Atomic weight: 127.60

Zirconium

Oct 30, 1789

1. Protons – 40
2. Electrons – 40
3. Neutrons – 51
4. Discover - Martin Klaproth 5.what year discovered – 1789
5. gas solid or liquid – solid
6. man made or nature – nature
7. deadly or not deadly – not deadly

Uranium

Oct 30, 1789

Symbol: U
Atomic number: 92
Atomic weight: 238.02891
Was discovered by Martin Klaproth at 1789 in Germany.

Strontium

Oct 30, 1790

1. Protons – 38
2. Electrons – 38
3. Neutrons – 50
4. Discover – A. Crawford 5.what year discovered – 1790
5. gas solid or liquid – solid
6. man made or nature – Man-Made
7. deadly or not deadly – not deadly

Titanium

Oct 30, 1791

1. Protons – 22
   
2. Electrons – 22
3. Neutrons – 26
4. Discover – William Roger 5.what year discovered – 1791
5. gas solid or liquid – solid
6. man made or nature - Nature
7. deadly or not deadly – Not Deadly

Yttrium

Oct 30, 1794

1. Protons – 39
   
2. Electrons – 39
3. Neutrons – 50
4. Discover - Johann Gadolin
   5.what year discovered – 1794
5. gas solid or liquid –solid
6. man made or nature – man-made
7. deadly or not deadly – possibly toxic

Chromium

Oct 30, 1797

1. Protons – 24
   
2. Electrons – 24
3. Neutrons – 28
4. Discover – Louis Vanquelin 5.what year discovered – 1797
5. gas solid or liquid – Solid
6. man made or nature – Nature
7. deadly or not deadly – Not Deadly

Beryllium

Oct 30, 1798

This element has 4 protons and electrons with 5 neutrons. Discovered in 1798 by Fredrich Wohler, Beryllium is a solid at room temperature and is also deadly with poison.

Niobium

Oct 30, 1801

discovered by Charles Hatchett at 1801 in England.
Symbol: Nb
Atomic Number: 41
Atomic Weight: 92.90638

Tantalum

Oct 30, 1802

 Symbol: Ta
 Atomic number: 73
 Atomic weight: 180.94788
 Was discovered by Anders Ekeberg at 1802 in Sweden.

Tantalum

Oct 30, 1802

 Symbol: Ta
 Atomic number: 73
 Atomic weight: 180.94788
 Was discovered by Anders Ekeberg at 1802 in Sweden.

Rhodium

Oct 30, 1803

 Symbol: Rh
 Atomic number: 45
 Atomic weight: 102.90550
discovered by William Hyde Wollaston at 1803 in England.

Palladium

Oct 30, 1803

 Symbol: Pd
 Atomic number: 46
 Atomic weight: 106.42
discovered by William Hyde Wollaston at 1803 in England.

Cerium

Oct 30, 1803

 Symbol: Ce
 Atomic number: 58
 Atomic weight: 140.116
 Was discovered by Wilhelm von Hisinger, Jöns Jacob Berzelius, and Martin Klaproth at 1803 in Sweden, Germany.

Osmium

Oct 30, 1803

 Symbol: Os
 Atomic number: 76
 Atomic weight: 190.23
 Was discovered by Smithson Tennant at 1803 in England.

Iridium

Oct 30, 1803

 Symbol: Ir
 Atomic number: 77
 Atomic weight: 192.217
 Was discovered by Smithson Tennant, Antoine Fourcroy, Louis Vanquelin, and Hippolyte Collet-Descotils at 1803 in England, France.

Sodium

Oct 30, 1807

Sir Humphrey Davy found this element in 1807, he found that it is a solid at room temp. plus, found in nature, it can harm you if you come in contact with it on bare skin. it has 11 protons and neutrons and 12 neutrons.

Boron

Oct 30, 1808

This element has 5 Electrons and 5 Protons, with 6 Neutrons, Discovered by Sir Humphry Davy in 1808, Boron is not deadly and is a solid at room temperature.

Magnesium

Oct 30, 1808

1. Protons - 12
2. Electrons – 12
3. Neutrons – 12
4. Discover – Sir Humphrey Davy 5.what year discovered - 1808
5. gas solid or liquid - Solid
6. man made or nature - Nature
7. deadly or not deadly - explosive properties

Calcium

Oct 30, 1808

1. Protons – 20
   
2. Electrons – 20
3. Neutrons – 20
4. Discover – Sir Humphrey Davy 5.what year discovered – 1808
5. gas solid or liquid – solid
6. man made or nature – Man-Made
7. deadly or not deadly - not deadly

Barium

Oct 30, 1808

 Symbol: Ba
 Atomic number: 56
 Atomic weight: 137.327
 Was discovered by Sir Humphrey Davy at 1808 in England.

Iodine

Oct 31, 1811

 Symbol: I
 Atomic number: 53
 Atomic weight: 126.90447
 Was discovered by Bernard Courtois at 1811 in France.

Lithium

Oct 30, 1817

Having 3 Protons and Electrons, plus 4 Neutrons, Lithium was discovered in 1817 by Johann Arfvedson. Found in Nature, Lithium is naturally a solid element, plus it's hardly dangerous, with the most it can do, is making mood swings.

Cadmium

Oct 30, 1817

 Symbol: Cd
 Atomic number: 48
 Atomic weight: 112.411
discovered by Friedrich Strohmeyer at 1817 in Germany.

Selenium

Oct 30, 1817

1. Protons – 34
   
2. Electrons – 34
3. Neutrons – 45
4. Discover – Jons Berzelius 5.what year discovered – 1817
5. gas solid or liquid – Solid
6. man made or nature – Man-Made
7. deadly or not deadly – yes

Silicon

Oct 30, 1823

1. Protons – 14
   
2. Electrons – 14
3. Neutrons – 14
4. Discover – Jons Berzelius 5.what year discovered - 1823
5. gas solid or liquid - Solid
6. man made or nature - Nature
7. deadly or not deadly - Breathing it in can be harmful

Aluminum

Oct 30, 1825

1. Protons – 13
   
2. Electrons – 13
3. Neutrons -14
4. Discover – Hans Christian Oersted 5.what year discovered – 1825
5. gas solid or liquid - Solid
6. man made or nature - Manmade
7. deadly or not deadly - eating it could cause alzheimer’s disease

Bromine

Oct 30, 1826

1. Protons – 35
2. Electrons – 35
3. Neutrons – 45
4. Discover - Antoine J. Balard 5.what year discovered – 1826
5. gas solid or liquid – Liquid
6. man made or nature – Man – Made
7. deadly or not deadly – Poisonous and causes skin to burn

Thorium

Oct 30, 1829

Symbol: Th
Atomic number: 90
Atomic weight: 232.03806
Was discovered by Jons Berzelius at 1829 in Sweden.

Vanadium

Oct 30, 1830

1. Protons – 23
2. Electrons – 23
3. Neutrons – 28
4. Discover – Nils Sefstrom 5.what year discovered – 1830
5. gas solid or liquid – Solid
6. man made or nature – Nature
7. deadly or not deadly – not deadly

Lanthanum

Oct 30, 1839

 Symbol: La
 Atomic number: 57
 Atomic weight: 138.90547
 Was discovered by Carl Gustaf Mosander at 1839 in Sweden.

Erbium

Oct 30, 1842

 Symbol: Er
 Atomic number: 68
 Atomic weight: 167.259
 Was discovered by Carl G. Mosander at 1842 in Sweden.

Terbium

Oct 30, 1843

 Symbol: Tb
 Atomic number: 65
 Atomic weight: 158.92535
 Was discovered by Carl Mosander at 1843 in Sweden.

Ruthenium

Oct 30, 1844

 Symbol: Ru
 Atomic number: 44
 Atomic weight: 101.07
discovered by Karl Karlovich Klaus at 1844 in Russia.

Caesium

Oct 30, 1860

 Symbol: Cs
 Atomic number: 55
 Atomic weight: 132.9054519
 Was discovered by Gustav Kirchhoff, Robert Bunsen at 1860 in Germany.

Rubidium

Oct 30, 1861

1. Protons – 37
2. Electrons – 37
3. Neutrons – 48
   
4. Discover – R. Bunsen 5.what year discovered – 1861
5. gas solid or liquid – Solid
6. man made or nature – Man-made
7. deadly or not deadly – not deadly

Thallium

Oct 30, 1861

Symbol: Tl
Atomic number: 81
Atomic weight: 204.3833
was discovered by Sir William Crookes at 1861 in England.

Indium

Oct 30, 1863

 Symbol: In
 Atomic number: 49
 Atomic weight: 114.818
discovered by Ferdinand Reich, Hieronymus Theodor Richter at 1863 in Germany.

Gallium

Oct 30, 1875

1. Protons – 31
   
2. Electrons – 31
3. Neutrons – 39
   
4. Discover - Paul Emile Lecoq de Boisbaudran 5.what year discovered – 1875
5. gas solid or liquid – Solid
6. man made or nature – Man-made
7. deadly or not deadly – Yes (if absorbed through body)

Holmium

Oct 30, 1878

 Symbol: Ho
 Atomic number: 67
 Atomic weight: 164.93032
 Was discovered by J. L. Soret and Delafontaine at 1878 in Switzerland.

Ytterbium

Oct 30, 1878

 Symbol: Yb
 Atomic number: 70
 Atomic weight: 173.054
 Was discovered by Jean de Marignac at 1878 in Switzerland.

Scandium

Oct 30, 1879

1. Protons - 21
2. Electrons – 21
3. Neutrons – 24
4. Discover – Lars Nilson 5.what year discovered - 1879
5. gas solid or liquid – solid
6. man made or nature - Nature
7. deadly or not deadly - Low toxic

Samarium

Oct 30, 1879

 Symbol: Sm
 Atomic number: 62
 Atomic weight: 150.36
 Was discovered by Paul Emile Lecoq de Boisbaudran at 1879 in France.

Thulium

Oct 30, 1879

 Symbol: Tm
 Atomic number: 69
 Atomic weight: 168.93421
 Was discovered by Per Theodore Cleve at 1879 in Sweden.

Gadolonium

Oct 30, 1880

 Symbol: Gd
 Atomic number: 64
 Atomic weight: 157.25
 Was discovered by Jean de Marignac at 1880 in Switzerland.

Praseodymium

Oct 30, 1885

 Symbol: Pr
 Atomic number: 59
 Atomic weight: 140.90765
 Was discovered by Carl F. Auer von Welsbach at 1885 in Austria.

Neodymium

Oct 30, 1885

 Symbol: Nd
 Atomic number: 60
 Atomic weight: 144.242
 Was discovered by Carl F. Auer von Welsbach at 1885 in Austria.

Fluorine

Oct 30, 1886

Joseph Henri Moissan discovered this element in 1886, it is a gas at room temperature, it is man-made, it is actually highly toxic and corrosive , it has 9 electrons and protons, with 10 neutrons.

Germanium

Oct 30, 1886

1. Protons – 32
2. Electrons – 32
3. Neutrons – 41
4. Discover – Clemens Winkler 5.what year discovered - 1886
5. gas solid or liquid – Solid
6. man made or nature – Man-made
7. deadly or not deadly – not deadly

Dysprosium

Oct 30, 1886

 Symbol: Dy
 Atomic number: 66
 Atomic weight: 162.500
 Was discovered by Paul Emile Lecoq de Boisbaudran at 1886 in France.

Polonium

Oct 30, 1889

Symbol: Po
Atomic number: 84
Atomic weight: [209]
Was discovered by Marie Curie at 1898 in France.

Argon

Oct 30, 1894

. Protons – 18

2. Electrons – 18
3. Neutrons – 22
4. Discover – Sir William Ramsay
5.what year discovered – 1894
6. gas solid or liquid – Gas
7. man made or nature - Nature
8. deadly or not deadly - not deadly

Potassium

Oct 30, 1894

. Protons – 18

2. Electrons – 18
3. Neutrons – 22
4. Discover – Sir William Ramsay
5.what year discovered – 1894
6. gas solid or liquid – Gas
7. man made or nature - Nature
8. deadly or not deadly - not deadly

Helium!

Oct 30, 1895

Helium has 2 Electrons, protons, & neutrons, found in 1895, and a gas element. Found in Nature, it isn't deadly , Sir William Ramsey found the element Helium

Neon

Oct 30, 1898

Sir William Ramsay found this element in 1898 as a gas at room temperature, in which can be made by man, and has 10 in protons, electrons, and neutrons.

Krypton

Oct 30, 1898

1. Protons – 36
   
2. Electrons – 36
3. Neutrons – 48
4. Discover – Sir William Ramsay 5.what year discovered – 1898
5. gas solid or liquid – Gas
6. man made or nature – Man-Made
7. deadly or not deadly – Safe

Xenon

Oct 30, 1898

 Symbol: Xe
 Atomic number: 54
 Atomic weight: 131.293
 Was discovered by Sir William Ramsay, Morris W. Travers at 1898 in England.

Francium

Oct 30, 1898

Symbol: Fr
Atomic number: 87
Atomic weight: [223]
Was discovered by Pierre and Marie Curie at 1898 in France.

Radium

Oct 30, 1898

Symbol: Ra
Atomic number: 88
Atomic weight: [226]
Was discovered by Pierre and MArie Curie at 1998 in France

Actinium

Oct 30, 1899

Symbol: Ac
Atomic number: 89
Atomic weight: [227]
Was discovered by Andre Debierne at 1899 in France.

Radon

Oct 30, 1900

Symbol: Rn
Atomic number: 86
Atomic weight: [222]
Was discovered by Friedrich Ernst Dorn at 1900 in Germany.

Europium

Oct 30, 1901

 Symbol: Eu
 Atomic number: 63
 Atomic weight: 151.964
 Was discovered by Eugene Demarcay at 1901 in France.

Lutetium

Oct 30, 1907

 Symbol: Lu
 Atomic number: 71
 Atomic weight: 174.9668
 Was discovered by Georges Urbain and Carl Auer von Welsbach at 1907 in France, Germany.

Protactinium

Oct 30, 1913

Symbol: Pa
Atomic number: 91
Atomic weight: 231.03588
Was discovered by Otto Hahn, Lise Meitner, Frederick Soddy, John Cranston at 1914 in Germany, England.

Hafnium

Oct 30, 1923

 Symbol: Hf
 Atomic number: 72
 Atomic weight: 178.49
 Was discovered by Dirk Coster and George Charles von Hevesy at 1923 in Denmark.

Rhenium

Oct 30, 1925

 Symbol: Re
 Atomic number: 75
 Atomic weight: 186.207
 Was discovered by Walter Noddack, Ida Tacke, and Otto Berg at 1925 in Germany.

Technetium

Oct 30, 1937

 Symbol: Tc
 Atomic number: 43
 Atomic weight: [ 98 ]
discovered by Carlo Perrier, Emilio Segre at 1937 in Italy.

Neptunium

Oct 30, 1940

Symbol: Np
Atomic number: 93
Atomic weight: [237]
Was discovered by Edwin M. McMillan and P.H Abelson at 1940 in the USA.

Plutonium

Oct 30, 1940

Symbol: Pu
Atomic number: 94
Atomic weight: [244]
Was discovered by Glenn T. seaborg, J.W Kennedy, E.M McMillan, A.C Wahl at 1940 in USA.

Astatine

Oct 30, 1940

Symbol: At
Atomic number: 85
Atomic weight:[210]
Was discovered by Dale Corson, MacKenzie, Segre at 1940 in California, USA.

Americium

Oct 30, 1944

• Symbol: Am
• Atomic number: 95
• Atomic weight: [ 243 ]
was discovered by Glenn Seaborg, Ralph James., L. Morgan, Albert Ghiorso at 1944 in USA.

Curium

Oct 30, 1944

• Name: Curium
• Symbol: Cm
• Atomic number: 96
• Atomic weight: [ 247 ]
was discovered by Glenn T. Seaborg, Ralph A. James, Albert Ghiorso at 1944 in USA.

Promethium

Oct 30, 1945

 Symbol: Pm
 Atomic number: 61
 Atomic weight: [ 145 ]
 Was discovered by J. A. Marinsky, Lawrence Glendenin, and Charles D. Coryell at 1945 in United States.

Berkelium

Oct 30, 1949

Symbol: Bk
Atomic number: 97
Atomic weight: [ 247 ]
was discovered by Glenn T. Seaborg, Stanley G. Thompson, Albert Ghiorso at 1949 in USA.

Californium

Oct 30, 1950

• Symbol: Cf
• Atomic number: 98
• Atomic weight: [ 251 ]
was discovered by Glenn T. Seaborg, Stanley G. Thompson, Albert Ghiorso, Kenneth Street at 1950 in USA.

Einsteninium

Oct 30, 1952

Symbol: Es
Atomic number: 99
Atomic weight: [ 252 ]
was discovered by Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA. at 1952 in USA.

Fermium

Oct 30, 1954

• Name: Fermium
• Symbol: Fm
• Atomic number: 100
• Atomic weight: [ 257 ]
was discovered by Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA.

Mendelevium

Oct 30, 1955

1. 101
2. 101
3. 157
4. Albert Ghiorso, Bernard Harvey, Gregory Choppin, Stanley Thompson, and Glenn Seaborg
5. 1955
6. Solid
7. Nature
8. Radioactivity

Nobelium

Oct 30, 1957

1. 102
2. 102
3. 157
4. Alfred Nobel
5. 1957
6. Solid
7. Man-made
8. Radioactivity

Lawrencium

Oct 30, 1961

1. 103
2. 103
3. 159
4. Albert Ghiorso, Torbjørn Sikkeland, Almon Larsh and Robert Latimer
5. 1961
6. Solid (presumed)
7. Man- made
8. Radioactivity

Rutherfordium:

Oct 30, 1964

1. 104
2. 104
3. 163
4. Team of scientist in Dubna
5. 1964
6. Solid (presumed)
7. Man – made
8. Radioactivity

Dubnium

Nov 2, 1967

1. 105
2. 105
3. 163
4. teams of scientists at the Joint Institute for Nuclear Research at Dubna, Russia and scientists at Lawrence Berkeley National Laboratory
5. 1967
6. Solid
7. Nature
8. Radioactivity

Seaborgium

Oct 30, 1974

1. 106
2. 106
3. 165
4. Team of scientists led by Albert Ghiorso
5. 1974
6. Solid
7. Man- made
8. Radioactive

Bohrium

Oct 30, 1976

1. 107
2. 107
3. 163
4. USSR
5. 1976
6. Solid
7. Man-made
8. Radioactive
9. Picture of mineral

Meitnerium

Oct 30, 1982

1. 109
2. 109
3. 169
4. Research scientist led by Peter Armbruster and Gottfried Munzenber
5. 1982
6. Solid
7. Nature
8. Radioactive
9. Picture of mineral

Hassium

Oct 30, 1984

1. 108
2. 108
3. 161
4. A team led by Peter Armbruster and Gottfried Münzenber at the Heavy Ion Research Laborator
5. 1984
6. Solid
7. Man-made
8. Radioactive
9. Picture of mineral

Darmstadtium

Oct 30, 1994

1 110
2 110
3 171
4 scientists at the Heavy Ion Research Laboratory
5 1994
6 Solid
7 Man-made
8 Radioactive

Roentgenium

Nov 2, 1994

1 111
2 111
3 170
4 scientists at the Heavy Ion Research Laboratory
5 1994
6 Solid
7 Man-made
8 Radioactive

Copernicium

Oct 30, 1996

1 112
2 112
3 173
4 scientists led by Sigurd Hofmann at the Heavy Ion Research Laboratory
5 1996
6 Solid
7 Man-made
8 Radioactive

flerovium

Oct 30, 1998

1 114
2 114
3 175
4 Science teams at the Joint institute
5 1998
6 Solid
7 Man-made
8 radioactive

Livermorium

Oct 30, 2000

1 116
2 116
3 177
4 science teams at the Joint Institute for Nuclear Research in Dubna and the Lawrence Livermore National Laboratory in California led by Yuri Oganessian and Ken Moody.
5 2000
6 Solid
7 Man-made
8 Radioactive

Ununoctium

Oct 30, 2002

1 118
2 118
3 176
4 Joint Institute for Nuclear Research in Dubna, Russia and the Lawrence Livermore National Laboratory (LLNL
5 2002
6 Gas
7 Man-made
8 Radioactive

Ununtrium

Oct 30, 2003

1 113
2 113
3 173
4 Research scientists at the Joint Institute for Nuclear Research in Dubna, Russia and the Lawrence Livermore National Laboratory (LLNL), California
5 2003
6 Solid
7 Man-made
8 Radioactive

Ununpentium

Oct 30, 2003

1 115
2 115
3 174
4 Research scientists at the Joint Institute for Nuclear Research in Dubna, Russia and the Lawrence Livermore National Laboratory (LLNL), California
5 2003
6 Solid
7 Man-made
8 Radioactive

Ununseptium

Oct 30, 2010

1 117
2 117
3 177
4 Yuri Oganessian
5 2010
6 Solid
7 Man-made
8 Radioactive