in a "s" sublevel there are a max of 2 electrons located on 1 orbital.
in a "p" sub level there are a max of 6 electrons located on 3 orbitals.
in a "d" sub level there are a max of 10 electrons located on 5 orbitals.
Extra:
within a level (n=2 or n=3 etc) the number of orbitals (adding all the s, p, d etc) is n^2. so in a n=2 level, there are 4 orbitals (1 for 2s, 3 for 2p..1+3=4)
The maximum number of electrons in the 2p sublevel is 6. The p sublevel has three orbitals, each of which can take two electrons.
6 electrons in 3 orbitals of p-sublevel: px, py and pz
The s sub-level can hold a maximum of two electrons; , p a maximum of 6; d, a maximum of 10 and f, a maximum of 14 (although the f sub-level is only present in the lanthanide and actanide series).
Multiply the orbitals in that sublevel by 2. The s sublevel has one orbital and can contain 2 electrons. The p sublevel has three orbitals and can contain 6 electrons. The d sublevel has five orbitals and can contain 10 electrons. The f sublevel has seven orbitals and can contain 14 electrons.
The d sublevel consists of five orbitals that can hold a maximum of two electrons each. The total maximum number of electrons that the d sublevel can hold is 10 electrons.
9
3
3
All p sublevels contain three orbitals, including the 4p sublevel.
The d sublevel consists of five orbitals that can hold a maximum of two electrons each. The total maximum number of electrons that the d sublevel can hold is 10 electrons.
In the principal energy level n = 3, there are s, p, and d orbitals. The s sublevel has 1 orbital, the p sublevel has 3 orbitals, and the d sublevel has 5 orbitals. These orbitals can hold up to a total of 18 electrons.
There are 9 orbitals in a g sublevel. (there is 1 in an s sublevel, 3 in a p sublevel, 5 in a d sublevel, 7 in an f sublevel, 9 in a g sublevel, 11 in an h sublevel, etc.)