Isotopes and relative atomic mass 1.7

Question 1

Explain the meaning of the term isotope

Answer 1

Isotopes are different atomic forms of the same element, which have the same number of protons but different number of neutrons

Question 2

How is the atomic and mass number affected by isotopes of the same element?

Answer 2

Isotopes must have the same proton number but different mass numbers
(If they had different proton numbers, they would be different elements altogether)

Question 3

What is relative atomic mass?

Answer 3

Ar is the average mass of all the isotopes of an element

Question 4

What is relative abundance?

Answer 4

Relative abundance is how much there is of each isotope compared to the total amount of the element in the world.
This can be in the form of a: Ratio, Fraction or Percentage

Question 5

What is the equation for relative atomic mass?

Answer 5

Ar=The mass of each isotope + Its relative abundance add these figures together
Divide this all by the sum of relatives abundances .