Post a New Question

Atoms ASAP

posted by .

An atom of potassium has an atomic mass of 39 amu and an atomic number of 19. It therefore has ______ neutrons in its nucleus.

a. 19
b. 39
c. 20
d. 2

  • Atoms ASAP -

    39-19 = 20

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question