Hydrogen contains 1 proton and usually no neutrons. Though this depends on the isotope.
A small percentage of hydrogen contains 1 proton and 1 neutron and an even smaller amount has 1 proton and 2 neutrons. This last variety is radioactive.
One Proton One electron zero neutrons
since there are 22 protons there has to be 22 nuetrons since there are 22 protons there has to be 22 nuetrons
protons and nuetrons are equal to no. of electrons present in atom
19 protons,21 neutrons
26 nuetrons, 22 electrons, and 22 protons
there are 12 protons in an atom of magnesium:-)
2 of each
5 protons 8 neutrons try it
Oxygen has: 8 neutrons 8 protons (8 electrons)
12 , 12 , 12
20 protons, 20 electrons, and usually 20 neutrons
8 protons 8 elentrons 8 neutrons in 8O16