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Among the following which elements have the same atomicity?

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Hydrogen

Helium

Oxygen

Both A & C

answer is D.

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Detailed Solution

Explanation:

Atomicity refers to the number of atoms in a molecule of an element.

Hydrogen (H₂): Diatomic, meaning it has 2 atoms per molecule.
Helium (He): Monatomic, as it exists as a single atom.
Oxygen (O₂): Diatomic, with 2 atoms per molecule.

Since both Hydrogen and Oxygen are diatomic, they have the same atomicity.

Final Answer

The correct answer is Both A & C (Hydrogen and Oxygen).

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