Isotopes And Atomic Mass

Question 1

What are isotopes?

Answer 1

• 2 atoms are isotopes if they have the same number of protons, but they have a different number of neutrons
• Therefore, isotopes have different atomic masses, but the same number of protons since they are 2 atoms of the same element

Question 2

What is average atomic mass?

Answer 2

-The average atomic mass is a weighted average of all the isotope masses for a particular element

Requirements:
- The number of isotopes
- The masses of each isotope
- The % of abundance of each isotope

Question 3

What is isotopic abundance?

Answer 3

Isotopic abundance is the percentage of each isotope in a sample of the element