Question

Lewis octet rule ..................

Answer 1

Answer:

octet rule is a chemical rule of thumb that state that atoms of main group elements tends to combine in such a way that each atom has eight electron in its valence shell giving its same electronic configuration as a noble gas.

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Answer 2

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1. Atom having 8 electrons in outermost shell are stable and never combined while those which has less than 8 electrons they combine with other.
2. After combining they complete their electron in the outermost shell.

Stable atoms are :-

• Hydrogen .
• Helium .
• lithium

Non stable atoms are :-

• Sodium
• Magnesium
• Aluminium