Phosphorous has 5 valence electrons.
So, you need 3 more to complete it.
Phosphorous has 5 valence electrons. So, you need 3 more to complete it.
5 electrons
there are five valence electrons in an atom of phosphorus
The energy required to remove electrons from an atom is called ionization energy. It is the minimum energy needed to remove an electron from a neutral atom in the gaseous phase.
no. of electrons to fill an energy level = 2n2. = 2x32 = 18
Noble gases have a complete set of valence electrons in their outermost energy level, which is why they are known to be stable and unreactive.
This is the second ionization energy.
2
If the first energy level is complete with two electrons, then the elements hydrogen and helium have two elements in their electron configuration. Hydrogen has one electron in its first energy level, while helium has two electrons filling its first energy level.
Covalent [the sharing of a pair of electrons] bond energy.
As each electron is removed, the successive ionization energy values increase. However, the ionization energy increases a lot when the sixth electron is removed. This suggests that the sixth electron is removed from a shell which is closer to the nucleus.
Nitrogen has atomic number = 7. The outer shell has 5 electrons, it requires 3 more electrons to complete the outer energy shell.