Question

Discuss about Octet Rule....​

Answer 1

Answer:

Hey mate here is your answer....

The octet rule is a chemical rule of thumb that reflects the observation that elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas. The rule is especially applicable to carbon, nitrogen, oxygen, and the halogens, but also to metals such as sodium or magnesium.

The valence electrons can be counted using a Lewis electron dot diagram as shown at the right for carbon dioxide. The electrons shared by the two atoms in a covalent bond are counted twice, once for each atom. In carbon dioxide each oxygen shares four electrons with the central carbon, two (shown in red) from the oxygen itself and two (shown in black) from the carbon. All four of these electrons are counted in both the carbon octet and the oxygen octet.

Hope it helps you.....

Answer 2

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Kossel and Lewis in 1916 developed an important theory of chemical combination between atoms known as electronic theory of chemical bonding. According to this atoms can combine either by transfer of valence electrons from one atom to another (gaining or losing) or by sharing of valence electrons in order to have an octet in their valence shell.

• This is known as octet rule.

Alternatively:

An atom possesses its greatest stability when its valence electron shell (outer shell) is complete.The K shell (n= 1) is complete when it contains two electrons while the remaining shells are complete when they contain eight electrons.This is referred to as Lewis octet rule.

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