No, Q is the outermost orbital. K is the first one.
Oxygen has 2 electrons in the innermost orbital and 6 in the outermost (valence) orbital.
In nitrogen, the inner shell consists of two electrons, which fill the 1s orbital.
Since Helium is a noble gas meaning it is stable, and the fact that it has one shell, it has 2 shells in its inner-most shell.
Those elements were (till now) not found
The orbital diagram for V5 consists of five electrons in the 3d orbital and no electrons in the 4s orbital.
The orbital diagram for chromium with atomic number 24 would show two electrons in the 1s orbital, two electrons in the 2s orbital, six electrons in the 2p orbital, six electrons in the 3s orbital, two electrons in the 3p orbital, and four electrons in the 3d orbital. This configuration would follow the aufbau principle and Hund's rule.
The orbital filling diagram for silicon shows two electrons in the 1s orbital, two electrons in the 2s orbital, and six electrons in the 2p orbital. This gives silicon a total of 14 electrons in its outer shell.
Nitrogen has 5 valence electrons. Valence electrons are the electrons that are found in the outer most shell of an atom, and are consequently the electrons that move from atom to atom in the formation of compounds. The reason for this is a result of the electron configuration. A nitrogen atom has 3 orbitals; the 1s orbital, the 2s orbital, and the 2p orbital. In this case, the 2s and 2p orbitals are the valence orbitals, as they have the electrons with the most energy. With 7 protons, a neutral nitrogen atom has 7 electrons. The s orbitals can only hold 2 electrons, and the p orbitals can hold up to 6 electrons. The 1s orbital is filled first, leaving five electrons, then the 2s orbital is filled, leaving 3 electrons, and then these remaining electrons fill the 2p orbital halfway. There are a total of 5 electrons in the 2s and 2p orbitals, and since these orbitals have the most energy, there are 5 valence electrons.
The are two electrons in the 3s orbital of magnesium (Mg.)
Electrons with l equals 3 are in the f orbital. The f orbital has a complex shape with 7 suborbitals, each of which can hold up to 2 electrons.
It depends what type of orbital these two electrons occupy. But there would be one arrow going up and one arrow going down to show two electrons in the same orbital.
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.