-
All things are composed of invisible tiny particles of matter, which can’t be destroyed. HERE IS A LINK :)
-
Described tiny indivisible particles called atoms.
Atoms can’t be divided or destroyed.
Atoms can join together to form molecules.
Atoms of one element are all the same. HERE IS A LINK :) -
Atoms contain electrons, which have a negative charge.
Atoms are solid with electrons and protons randomly placed through them. HERE IS A LINK :) -
Atoms have a dense nucleus which contains protons, and most of the rest is empty space.
Electrons orbit around the nucleus like planets around the sun. <a
href='http://www.newworldencyclopedia.org/entry/Ernest_Rutherford' >HERE IS A LINK :)</a> -
Electrons are arranged in layers or shells around the nucleus.
The shells have different energy levels, and electrons fill up the lowest levels first. HERE IS A LINK :) -
The nucleus also contains neutrons, which are unchanged particles with a similar mass to protons. HERE IS A LINK :)
