Question

An element has atomic number 29 and mass number 62. The number of the neutrons in its nucleus is -

• A. 31
• B. 32
• C. 33
• D. 34

Answer 1

The correct option is C

33

Atomic No = 29 No. of electrons = 29
No. of protons = 29

Mass Number = 62
Number of neutrons = Mass Number - Atomic Number = 62 - 29 = 33