Protons: positive charge, mass= 1 amu, in the nucleus, = the atomic number, determines which element it is, Neutrons: neutral, mass = 1 amu, in the nucleus, Protons + ______ = mass number, Electrons: negative charge, mass = roughly 0 amu, in the electron shells, Are equal to the number of protons in a neutral atom,

Ranking

Estilo visual

Opções

Alterar modelo

Restaurar arquivo salvo automaticamente: ?