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  • Created by: eunice
  • Created on: 13-09-11 19:25

What is an Compound?

A group of atoms formed from two or more chemically bonded elements in a fixed ratio, usually shown by a chemical formula.

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What is an Isotope?

An atom of the same element but with different masses and number of neutrons.

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What is an Ion?

A positively or negatively charged atom or groups of atoms (molecular ions).

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