Elements X and Y are in group VII of the periodic table. X is a liquid while Y is a solid at room temperature. Which statement is correct?
1. Atoms of Y have more protons than atoms of X.
2. Molecules of Y have more atoms than molecules of X.
3. Y displaces X from an aqueous solution of $X^{-}$ ions.

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Solution

The correct option is A 1
Melting point decreases going down the group and the atomic number or protons increases going down so the element Y has more protons as compared to X.

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Elements X and Y are in group VII of the periodic table. X is a liquid while Y is a solid at room temperature. Which statement is correct?1. Atoms of Y have more protons than atoms of X.2. Molecules of Y have more atoms than molecules of X.3. Y displaces X from an aqueous solution of X− ions.

The correct option is A 1Melting point decreases going down the group and the atomic number or protons increases going down so the element Y has more protons as compared to X.

The correct option is A 1
Melting point decreases going down the group and the atomic number or protons increases going down so the element Y has more protons as compared to X.