10
Neon has two rings. It also has eight electrons in its outer energy level.
Neon has 10 protons, 10 neutrons and 10 electrons.
about 16
4
One(1)
17 electrons.
30 electons
6
Helium has 2 electrons
7 protons
One - assuming the atom is not an ion.
The Answer is 4.....!