Chemistry Topic 1

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  • Created by: AK786
  • Created on: 12-09-16 15:56

What is the definition of atomic number

Atomic number is equal to the number of protons in the nucleus in an atom. Given the notation (Z)

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What is the definition of an atom

An atom is the smallest particle of an element which has the characteristics of the elements. It consists of 3 subatomic particles (protons, neutrons and electrons)

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What is the definition of mass number

It is the total number of protons and neutrons in the nucleus of an atom. Given the notation (A)

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What is the definition of isotope

An isotope is an atom of the same element which has a different mass number but the same atomic 

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