Isotopes

Question 1

Define ‘Isotopes’

Answer 1

• Different atomic forms of the same element, which have the same number of protons but different numbers of neutrons

Question 2

Give examples of Isotopes

Answer 2

• Carbon-12 and Carbon-14

Question 3

What must Isotopes have?

Answer 3

• The same number of protons but different number of neutrons

Question 4

What does Relative Atomic Mass do?

Answer 4

• It takes Isotopes into account

- Uses the average mass of the isotope as an element

Question 5

Define ‘Relative Abundance’

Answer 5

• How much there is of each isotope compared to the total amount of the element in the world
• It can be as a ratio, fraction or percentage

Question 6

How do we work out the RAM?

Answer 6

• Multiply mass x RA
• Add together
• Divide by the sum