Proton Neutron Electron Worksheet - Web protons, neutrons, and electrons worksheet. Describe the locations, charges, and masses of the three main subatomic particles. Web • protons and neutrons are in the center of the atom, making up the nucleus. # protons + # neutrons = atomic mass #. Web 16 rows protons, neutrons, and electrons practice worksheet. • electrons surround the nucleus.
# protons + # neutrons = atomic mass #. Web 16 rows protons, neutrons, and electrons practice worksheet. Web protons, neutrons, and electrons worksheet. • electrons surround the nucleus. Web • protons and neutrons are in the center of the atom, making up the nucleus. Describe the locations, charges, and masses of the three main subatomic particles.