GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Atoms tend to be stable and nonreactive if they have ____ valence electrons.
A
3
B
4
C
6
D
8
Explanation: 

Detailed explanation-1: -The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds.

Detailed explanation-2: -Due to the incomplete number of electrons in the valence shell, sodium is known to have an open shell. To gain stability, electrons in the last orbital form covalent or ionic bonds with others. This bonding leaves both atoms with 8 electrons in their last shell and a more stable molecule.

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