3p
The 3p sublevel can hold a maximum of 6 electrons.
The electrons fill in the lowest energy orbital that is available. Electrons in the 4s orbital have a lower energy level than electrons in the 3p orbital, so the 4s orbitals are filled with electrons first.
All of the orbitals in the same energy sublevel (s, p, d, f) have the same amount of energy. For example, each of the 3p orbitals have the same energy and all of the electrons in the 3p orbitals have the same energy.
Al, Si, P, S, Cl and Ar have 1, 2, 3, 4, 5 and 6 electrons respectively in the 3p (valence orbitals). However all elements after Argon have completely filled 3p orbitals though 3p is not the valence orbital.
The alkali earth metal with only 2p and 3p electrons is Calcium (Ca). It has 2 electrons in the 2p orbital and 2 electrons in the 3p orbital.
The electron configuration of calcium is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2. This means that calcium has 20 electrons, with two electrons in the 1s orbital, eight in the 2s and 2p orbitals, and eight in the 3s and 3p orbitals, and finally two in the 4s orbital.
9
There are no unpaired electrons in calcium, all 20 electrons are in pairs, i.e. each pair is configured in one orbital: 2x in 1s orbital 2x in 2s orbital 2x in each of the three 2p orbitals 2x in 3s orbital 2x in each of the three 3p orbitals and 2x in 4s orbital (these two are the valence electrons)
There are 2, 6 and 10 electrons in the 3s (1 suborbital), 3p (with 3 suborbitals: 3px, 3py, 3pz) and 5 sub orbitals in the 3d orbital: this makes a total of 18 electrons in 9 suborbitals
3p
The 8 valence electrons for argon are located in the 3s and 3p orbitals, with two electrons in the 3s orbital and six electrons in the 3p orbital.
In silver there are 2 electrons in 3s orbital, 6 electrons in 3p orbitals and 10 electrons in 3d orbitals. So there is a total of 18 electrons
The electron orbitals of silicon are 1s, 2s, 2p, 3s, and 3p. Silicon has a total of 14 electrons, with two electrons in the 1s orbital, eight electrons in the 2s and 2p orbitals, and four electrons in the 3s and 3p orbitals.
Silicon has three orbitals in its valence shell: one 3s orbital and two 3p orbitals. This gives it a total of four valence electrons.
A silicon atom has 4 valence electrons. These electrons are paired up in the 3s and 3p orbitals. Therefore, a silicon atom does not have any unpaired electrons.
The third shell can hold a maximum of 18 orbitals. This includes one 3s orbital, three 3p orbitals, and five 3d orbitals, totaling nine orbitals. Each orbital can hold a maximum of 2 electrons.