Question

1. Define valency by taking examples of silicon and oxygen.​

Answer 1

Answer:

The valency is the combining capacity of an atom. ... The valency is equal to the number of electrons in the outermost shell (valence shell) of an atom. For example, silicon (atomic number 14) has the following electronic distribution: K = 2, L = 8, M = 4.

Answer 2

Answer:

Valency is defined as the no.of valence electrons presennt in the outermost shell of an atom.For eg.Oxygen has 6 electons in its outermost shell so it has 2 valence electons to react with other elements and silicon has 4 electrons in its outermost orbit so it needs 4 more electrons to attain the stable electon configaration of nearest inert gas so it has valecy 4.

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