Atomic structure

Question 1

Define isotopes

Answer 1

Atoms of the same element with the same number of protons but different number of neutrons and therefore different masses

Question 2

Define relative isotopic mass

Answer 2

mass of an isotope relative to 1/12th of the mass of an atom of carbon-12

Question 3

Define relative atomic mass

Answer 3

the weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of carbon-12.

Question 4

State the formula for the relative atomic mass

Answer 4

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