What is octet rule?How do you appreciate role of the octet rule in explaining properties of elements
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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 Octet Rule and Its Exceptions
The rule is applicable to the main- group elements, especially carbon, nitrogen, oxygen, and the halogens, but also to metals such as sodium and magnesium. Valence electrons can be counted using a Lewis electron dot diagram.
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