Which element or ion listed below has the electron configuration 1s22s22p6?

Count up the number of electrons in each orbital. theres ten electrons which means it has 10 protons. the element would be neon

This is what i found “nuclear fuel is material used in nuclear power stations to produce heat to power turbines. heat is created when nuclear fuel undergoes nuclear fission. most nuclear fuels contain heavy fissile actinide elements that are capable of undergoing and sustaining nuclear fission.” i hope this you for what your looking for. can you plz mark me brainliest?

The mass has escaped into a gas which you can not see so the law stays true.