Question

how many electrons are present in na+

Answer 1

Hey!
There are 10 electrons present in Na+ .This is because Na has 11 electrons at first. But since it has the trend to release an electron and be a cation, it loses an electron and bears 10 now....
Hope it helos u! :)

Answer 2

There are 10 electrons present in Na+.

The atom of sodium has 11 electrons, 11 protons along with 12 neutrons, but Na+ contains one less electron, 11 protons along with 12 neutrons, as the ion has lost 1 electron.

It makes the electrons present in that atom equivalent to the nearest gas which is Noble, which is Neon and has 10 electrons.