2
The first energy level can hold up to 2 electrons, the second energy level can hold up to 8 electrons, the third energy level can hold up to 18 electrons, and the fourth energy level can hold up to 32 electrons.
Electron energy levels are specific regions around an atomic nucleus where electrons are likely to be found. The number of electrons that can fit into each energy level is determined by the formula 2n^2, where n denotes the principal quantum number of the energy level. For example, the first energy level (n=1) can hold a maximum of 2 electrons, the second energy level (n=2) can hold up to 8 electrons, the third energy level (n=3) can hold up to 18 electrons, and so on.
An atom has multiple energy levels. When an atom has more electrons than it can fit into an energy level, then it puts them into the next higher energy level.
The maximum number of electrons that can be accommodated on each energy level is given by 2n^2, where n is the principle quantum number of the energy level. For example, the first energy level (n=1) can hold a maximum of 2 electrons, the second energy level (n=2) can hold a maximum of 8 electrons, and so on.
2 electrons
Generally, 8 or less electrons may only inhabit the second ring.
8
8
Oh, dude, helium only has two electrons total, so there can't be any in the third energy level. It's like trying to fit a square peg in a round hole - just not gonna happen. So, zero electrons in the third energy level of helium.
18
Answer this question… The extra electrons begin to fill the next energy level.
Answer this question… The extra electrons begin to fill the next energy level.