If you are thinking of isotopes, which are naturally occurring atomic structures that vary in the number of neutrons atom to atom. ex Carbon 12 13 14. But otherwise lots of atomic structures contain more neutrons than protons or electrons. Uranium for example 92 protons 146 neutrons
protons and nuetrons are equal to no. of electrons present in atom
there are 12 protons in an atom of magnesium:-)
In the nucleas
mass number = protons + nuetrons
Electrons, protons, and nuetrons. electrons are outside the nucleus, and protons and nuetrons are inside the nucleus.
Protons and Nuetrons
The nucleus
protons and nuetrons
protons and neutrons
The part of the atom that contains neutrons and protons is called the nucleus.
protons. nuetrons. and electrons.
They are both found in the nucleus of an atom.