How many protons neutrons and electrons does an element have?

Answer 1

An element must always have the same number of protons as it's atomic number. The number of electrons may vary, making an atom into an ion, and the number of neutrons can also vary which is why we have different isotopes of the same element.

Answer 2

Different elements and different isotopes of an element, the number of protons, neutrons and electrons varies.

Taking hydrogen and carbon for exmaple.

Hydrogen isotopes

protium ; 1 proton , no neutrons, 1 electron (Normal hydrogen)

deuterium ; 1 proton , 1 neutron and 1 electron (Heavy hydrogen)

tritium ; 1 proton , 2 neutrons and 1 electron. (Super heavy hydrogen).

Notice all isotopes of hydrogen have one proton and one electron , but the number of neutrons varies.

Carbon Isotopes

C-12 ; 6 protons , 6 neutrons and 6 electrons

C-13 ; 6 protons , 7 neutrons and 6 electrons

C - 14 ; 6 protons , 8 neutrons and 6 electrons.

Notice again all the isotopes of carbon have 6 protons and 6 electrons but a different number of neutrons.

However, comparing hydrogen and carbon , hydrogen has only 1 protons and 1 electrons but carbon has 6 protons and 6 electrons.

Different numbers of protons make for different elements. Different number of neutrons make for different isotopes of an element.

All other elements vary in this manner.!!!!

Hope that helps

Answer 3

It has the same number of protons and electrons. It has none to about 2x the number of neutrons as protons, depending on the number of protons (more protons, more neutrons).