Magnesium is the element that has 12 neutrons in it.
hydrogen
mercury
26 nuetrons, 22 electrons, and 22 protons
there are 12 nuetrons in an atom of magnesium
The chemical element of chlorine has 18 nuetrons,17 protons and 17 electrons
quark
no it has a nutral charge because in the middle of protons and electrons there is nuetrons. nuetrons have a nutral charge and so does the atom.
This is 100% dependant on the element and the isotope of the element. Not every nucleus is the same.
12 , 12 , 12
Iodine
Calcium (Ca)
Is called an Isotope.