Identify the Element Having Zero valency.

By BYJU'S Exam Prep

Updated on: September 25th, 2023

(A) Sulphur

(B) Phosphorous

(C) Lead

(D) Radon

Radon has zero valency. The valency of an atom refers to its ability to combine. The valency of an element describes how many bonds an atom can make as part of a compound. The electrons in the atom’s outermost orbit are known as valence electrons.

Elements Having Zero Valency

No valency exists in the noble gas family, Because their outer shells are completely filled and they are chemically inert gases, helium, neon, radon, and argon have zero valency. Therefore, choice 4 is right. The quantity of electrons that an atom must gain or lose in order to achieve a stable electron configuration is known as valency.

The qualities of an element that reveal how many more atoms can join one of its atoms in a covalent connection are known as the valence, or valency, in chemistry. The phrase, which was first used in 1868, is used to represent both the broad potential of combining an element and the numerical magnitude of the power of combining.

Since the majority of bonds are created by the interchange of valence electrons, valence is defined as the quantity of electrons. The valence electrons determine what valences are and what their meaning is in chemistry.


Identify the Element Having Zero valency. (A) Sulphur (B) Phosphorous (C) Lead (D) Radon

Radon has no valency at all. An atom’s valency describes how well it can combine. How many bonds an atom can form in a compound is indicated by an element’s valency. The noble Gas family has no valency or zero valency.

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