IDNLearn.com is designed to help you find the answers you need quickly and easily. Our Q&A platform offers reliable and thorough answers to ensure you have the information you need to succeed in any situation.

what 2 particles account for almost all if the mass of an atom

Sagot :

Protons and Neutrons make up the atomic mass in an atom. Electrons DO NOT whatsoever. 
Protons and neutrons both weigh 1 Amu electrons are so small they weigh 0 amid so it's protons and neitrons