Mass Number and Atomic Number

Question 1

Mass Number =

Answer 1

Number of protons plus the number of neutrons in the nucleus of an atom

Question 2

Atomic Number =

Answer 2

Number of Protons in the nucleus of an atom (this equals the number of electrons)

Question 3

Number of neutrons =

Answer 3

Mass number - atomic number

Question 4

Number of protons =

Answer 4

Atomic Number

Question 5

Number of Electrons =

Answer 5

Atomic Number