Explain the Atomic Size and Atomic Radius.

1.	Explain the Atomic Size and Atomic Radius.
Answer» Atomic Size and Atomic Radius Atomic Radius – The distance between the centre of the nucleus and the outermost shell of an isolated atom. Covalent radius of an element – half the internuclear distance between the two atoms of the element held by a single covalent bond. Metallic radius of an element – half the internuclear distance between the two nearest metal atoms in a metallic crystal. Atomic radii increases down the group and increases across the period.

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Atomic Size and Atomic Radius

Atomic Radius – The distance between the centre of the nucleus and the outermost shell of an isolated atom.

Covalent radius of an element – half the internuclear distance between the two atoms of the element held by a single covalent bond.

Metallic radius of an element – half the internuclear distance between the two nearest metal atoms in a metallic crystal.

Atomic radii increases down the group and increases across the period.

Discussion