2 electrons.
He-4 and He-3 are the two most occuring isotopes.
Helium atom has 2 electrons.
A neutral atom of helium has 2 electrons.
2
helium has 2 electrons as its atomic number is 2
Helium will have only 2 electrons
There are particular isotopes that have similar number of electrons and neutrons. Some of these isotopes include hydrogen-2, helium-4, carbon-12 and nitrogen-14.
Helium is a non metal element. There are 2 electrons in a single atom.
Helium has two valence electrons
Helium has 2 valence electrons.
There are no electrons present in a helium atom in its second energy level.
2. The atomic number which is 2 stands for how many protons (also electrons, in an uncharged atom) are in the element's atom.
It depends on the charge of the atom/ion however in a no-charged state Helium will have 2 electrons. If the Helium is charged negatively will have more. If it is charged possitively (up to 2+) it will have less. As Helium is a noble gas, it is rarely found in a charged state!