Question

An atom contains 32 protons, 40 neutrons and 32 electrons. Identify the mass number of this atom?​

Answer 1

Answer:

72 amu

Explanation:

Atomic mass or the mass of an atom = no. of protons + no. of neutrons in an atom

Mass = 32 + 40 = 72

Answer 2

Answer:

The correct answer will be 72

Explanation:

Atomic mass or the mass of an atom = no. of protons + no. of neutrons in an atom

Mass = 32 + 40 = 72