Why do covalent compounds follow the octet rule?

The is a "rule of thumb" in which an atom must achieve a full electron shell in its outermost orbit. This results in 8 electrons. When an atom achieves...

I'm guessing that one element that never obeys the when is beryllium. Beryllium has only 2 for bonding. Another element that does not follow the octet rule is boron....

The rule of duet refers to the first five of . They are most stable when the 1s orbital is filled with two (duet) electrons. Hydrogen looks to gain one...

The rule is basically unchanged, except that the pair of shared electrons is usually associated with the more electronegative atom. In the case of $HF$, the two atoms form a...

The $NO_2$ species is a radical species, which displays a lone electron (somewhere!). The Lewis structure demands charge separation: the nitrogen bears a positive charge, and one of the oxygens...

The group that the are in are equal to the number of electrons in their respective outer shells.

Covalent molecules are two non-metal atoms that share their to complete their outer shell. For example, Hydrochloric Acid (HCl). Generally, Covalent molecules also have different properties to like low melting...

Ionic bonds are created by electrochemical attraction between atoms of opposite charges, while molecular bonds (aka covalent bonds) are created by atoms sharing electrons in order to complete the rule...

The works most of the time, but here are the exceptions: 1. If the central atom is in group 13A - then it is stable with an INCOMPLETE octet (or...

$ BF_3$ follows the because the Boron has three electrons so that it can give one electron to each of the three fluorine atoms. this gives each of the florine...