The maximum number of electrons in any s sublevel is 2, irrespective of what the principal quantum number, i.e., the number before the s in an electron configuration, may be.
Two. The ground state configuration of Sulfur is [Ne] 3s23p4. According to Hund's rule, the p orbitals must fill up separately first. This results in the first 3 electrons going into separate orbitals, and the fourth then doubles up with the first, leaving the other two p orbitals with unpaired electrons.
There are two sublevels in the second principle energy level. The s sublevel has one orbital and the p sublevel has 3, for a total of 4 orbitals.
Fluorine has an atomic number of 9. This means there are 9 protons in the nucleus. Most fluorine around the world has 10 neutrons in the nucleus (mass number of 19). There will be an equal number of electrons as protons in a normal atom, so 9 electrons. Electrons are arranged with 2 in the first layer closest to the nucleus and 7 in the second layer. Does this help?
The number of electrons in potassium: Level, electrons 1S 2 2S 2 2P 6 3S 2 3P 6 4S 1 4 energy levels
Nitrogen has 2s^3 2p^3 valence electrons so the answer would be 3
Levels 2p and 2s.
2s Sublevel
2
2s: 2 electrons 5p: 6 4f: 14 3d: 10 4d: 10
Be
17
hydrogen
The hydrogen atom only has one energy level (shell). The first energy level also contains only one sublevel, 1s sublevel (subshell), which can only hold two electrons. When you get to the second energy level in the second period on the periodic table, it has two sublevels, the 2s and the 2p sublevels. Both of the electrons in the 2s sublevel have the same energy. The 2p sublevel can hold 6 electrons. All of the electrons in the 2p sublevel have the same energy, which is higher than the energy in the 2s sublevel. So, as we move down the periods on the periodic table, we move from the first energy level to the seventh energy level. Each energy level contains specific numbers of sublevels, and all of the atoms within a particular sublevel have equal energy.
The 2p sub-level can hold a maximum of 6 electrons. The 2p sub-level is divided into 2px, 2py and 2pz. Each of those orbitals can hold a maximum of 2 electrons. There are 3 of them and thus 6 total for the 2p sub-level.
First orbital can be occupied by a total of 2 electrons and the second orbital can be occupied by a total of 8 electrons. 1s^2 2s^2 2p^6 ( what element is this ? )
When n=2, you have an s orbital with 2 electrons, and you have 3 p orbitals each with 2 electrons (total of 6). So, total number of electrons for n=2 is 8 electrons.
An element cannot have 4 electrons in the 2 s level. The s subshell can hold only TWO electrons. Carbon has 4 electrons in the 2p level, however, if that's what you meant.