Simu
Last Activity: 6 Years ago
1) All matter, whether an element, compound or a mixture is made up os extremely small particles called atoms.
2) Atoms of the same element are identical in all respects, I.E. In shape, size, mass and properties.
3) Atoms of different elements have different sizes and masses.
4) Atoms of the same or different elements combine together to form molecules or compounds.
5) The number and kind of atoms in a given compound is always fixed.
6) An atom can neither be created nor be destroyed.
7) Atom is the smallest particle that takes place in a chemical reaction.
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