Help with Atomic number & Atomic mass?

Question

Atomic number equals the number of ____ or ____. Atomic mass equals the number of ____ + _____.
What are the blanks?
I can figure out the rest.

abd Thank you!!

Answer 1

atomic number = # proton or neutron
atomic mass = # proton + # electron

Answer 2

Atm. no. is the number of protons or positive charges. In a neutral atom, the number of protons equals the number of electrons, so the atomic number is also the number of electrons. However, electrons can be lost or gained, so that doesn't always match.

Atomic mass equals the number of protons plus neutrons.

Answer 3

The atomic number is the number equals the number of PROTONS (inside the nucleus)or ELECTRONS(outside the nucleus revolving around it).

while the atomic mass equals the number of PROTONS + NEUTRONS

Good Luck ... With Best wishes

Answer 4

atomic number = # of protons in a nucleus
atomic mass = # protons + # neutrons

Answer 5

Cu Den mixed it up
Atomic number- number of protons or electrons
Atomic mass- number of protons and neutron