Isoscopes have the same number of ___ but different number of ___

Atoms of the same element, containing the same number of protons, but different numbers of neutrons, are known as isotopes. Isotopes of any given element all contain the same number of protons, so they have the same atomic number (for example, the atomic number of helium is always 2(

particle   p is an electron and particle q is a neutron

let that person have a turn to speak : )