If it isn't using energy, it's called diffusion
Answer: 5
Explanation: add up all the electrons and it will amount to 23. Arranging by the old model for electronic configuration, we have : 2, 8, 8, 5
The last number being 5 represent its valence electron
Are u talking about electron sublevel config or where the electrons show in the "rings" of the atom
The charge of a nucleus is positive
