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John Dalton
John Dalton was born September 6, 1766, in Eaglesfield, England. During his early career, he identified the heretagee nature of red-green color blindness. In 1803 he proved he concept of Dalton’s Law of Partial Pressures. In the 1800s, he was the first scientist to explain the role of atoms in terms of the measurement of weight. Dalton died July 26, 1844 in Manchester, England. "John Dalton Biography." Bio.com. A&E Networks Television, n.d. Web. 04 Sept. 2013. <http://www. -
Dalton's Model
Dalton's atomic theory revealed that all matter was composed of atoms, indivisible and indestructible composition of blocks. While all atoms of an element were identical, different elements had atoms of contrastingsize and mass. "John Dalton and Atomic Theory." Boundless. N.p., n.d. Web. 06 Sept. 2013. https://www.boundless.com/chemistry/atoms-molecules-and-ions/history-of-atomic-structure/john-dalton-and-atomic-theory/. -
William Crooke
William (1832-1919,) was a man of science, he was born on London 17 June 1832, the eldest son of Joseph Crookes, by his second wife, Mary Scott. He received some education att grammar school at Chippenham, but his scientific career began at the age of fifteen. "William Crookes." William Crookes. N.p., n.d. Web. 04 Sept. 2013. <http://www.chem.ox.ac -
J.J. Thompson
J.J. Thomson was born on December 18, 1856, in Cheetham Hill, England, and went on to attend Trinity College at Cambridge, where he would became the head the Cavendish Laboratory. His researches led to the discovery of the electron, and he implemented further innovations in atomic structure exploration. Thomson won the 1906 Nobel Prize in Physics. "J.J. Thomson Biography." Bio.com. A&E Networks Television, n.d. Web. 04 Sept. 2013. http://www.biography.com/people/jj-thomson-40039. -
Ernest Rutherford
Ernest Rutherford was a New Zealand chemist who helped pioneer nuclear physics. He won a Nobel Prize in chemistry, made numerous contributions to science and worked closely with students who loooked up to his work. Ernest Rutherford lived from the 30th of August 1871 to the 19th of October 1937. "Ernest Rutherford Biography." Bio.com. A&E Networks Television, n.d. Web. 04 Sept. 2013. http://www.biography.com/people/ernest-rutherford-39099. -
Niels Bohr
Born on October 7, 1885, in Copenhagen, Denmark, Niels Bohr went on to become an awell known physicist who came up with a revolutionary theory on atomic structures and radiation emission. He won the 1922 Nobel Prize in physics for his ideas and years later, after working on the Manhattan Project in the United States, called for responsible and peaceful applications of atomic energy across the world. -
James Chadwick
James Chadwick was English and he was a Physicist by Chadwick got admitted in Victoria University, Manchester. He was more interested in studying mathematics but instead he was admitted in the field of physics mistakenly. Chadwick was pretty bashful as a person so he did not make any attempt to amend the error. In 1911, he passed out of the Honors School . "Famous Scientists." Science Blog RSS. N.p., n.d. Web. 03 Sept. 2013. http://www.famousscientists.org/james-chadwick/. -
J.J. Thomson's Model
J. J. Thomson considered that the structure of an atom is something like a raisin bread, so that his atomic model is sometimes called the raisin bread model. He assumed that the basic body of an atom is a spherical object containing N electrons confined in homogeneous jellylike but relatively massive positive charge distribution whose total charge cancels that of the N electrons. "Thomson Model (English)." Thomson Model (English). N.p., n.d. Web. 06 Sept. 2013. <http://www.kutl.kyushu-u.ac.jp/s -
Rutheford Model
Ernest Rutherford publishes his atomic theory describing the atom as having a central positive nucleus surrounded by negative orbiting electrons. This model suggested that most of the mass of the atom was contained in the small nucleus, and that the rest of the atom was mostly empty space. "Rutherford - Atomic Theory." Rutherford - Atomic Theory. N.p., n.d. Web. 06 Sept. 2013. http://www.rsc.org/chemsoc/timeline/pages/1911.html. -
Bohrs Model
In Niels Bohr's model of the atom, electrons can circle the nucleus only in particular orbits of fixed size and energy. This theory considers that idea of electrons as being little billiard ball like particles that travel round in orbits as absurdly wrong; instead electrons form probability clouds "Bohr Model." Kids.Net.Au. N.p., n.d. Web. 04 Sept. 2013. http://encyclopedia.kids.net.au/page/th/The_Bohr_Model. -
Quantum Mechanical Model
The quantum mechanical model is based on quantum theory, which says matter also has properties associated with waves. According to quantum theory, it’s impossible to know the exact position and momentum of an electron at the same time.
The quantum mechanical model of the atom uses complex shapes of orbitals volumes of space in which there is likely to be an electron. "Atomic Structure: The Quantum Mechanical Model." - For Dummies. N.p., n.d. Web. 04 Sept. 2013."
