Question

An atom with 4 protons, 5 neutrons, and 4 electrons has an atomic mass of _____ amu. (Enter a whole number.) Numerical Answers Expected! Answer for Blank 1:

Answer 1

Beryllium - Atom Mass: 9

Answer 2

Your answer is: 9 amu

5 neutrons + 4 protons = 9 amu

Hope this helped :)