Isotopes

Question 1

Explain what an isotope is

Answer 1

Isotopes are atoms of an element with the normal number of electrons &protons but have different num s of neutrons.

Question 2

Calculating relative atomic mass of isotopes

Answer 2

divide each % by 100
and x by mass number(in the question)
and + together

Question 3

Or if you are given numbers instead of %

Answer 3

Multiply mass by isotope abundance
+ together
÷by sum of abundances

Question 4

Mass num = …

Answer 4

Relative atomic mass or Relative formula mass