JEE MAIN · CHEMISTRY · PERIODIC TABLE AND PERIODICITY

JEE Main Periodic Table and Periodicity Questions & Solutions

16 solved questions on Periodic Table and Periodicity, ranging from easy to JEE-Advanced-flavour hard. Click any to see the full solution.

11Easy
5Medium
0Hard

All 16 questions

  1. Easy TRUE_FALSE +2 / -1

    Anions are always smaller than their parent atoms.

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  2. Easy INTEGER +4 / -1

    The radius of Na⁺ (in pm) in sodium chloride is 102. The radius of Cl⁻ is 181 pm. The difference is $x$ pm. Find $x$.

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  3. Easy MCQ +4 / -1

    The ionic radius of Fe²⁺ is larger than Fe³⁺ because:

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  4. Medium MCQ +4 / -1

    Arrange the following ions in increasing order of size: Na⁺, Mg²⁺, Al³⁺, O²⁻

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  5. Easy TRUE_FALSE +2 / -1

    Noble gases have high positive electron affinity values.

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  6. Easy INTEGER +4 / -1

    If EA of Cl is $-349$ kJ/mol, the energy released on adding one electron to 1 mol of Cl atoms is $x$ kJ. Find $x$.

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  7. Easy MCQ +4 / -1

    Electron affinity is a measure of:

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  8. Medium MCQ +4 / -1

    Which element has the highest electron affinity among the following?

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  9. Easy TRUE_FALSE +2 / -1

    Ionization energy is always an endothermic process.

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  10. Medium INTEGER +4 / -1

    If the first ionization energy of Li is 520 kJ/mol, the approximate IE₂ would be $x \times 10^3$ kJ/mol. Find $x$ (given IE₂ ≈ 7300 kJ/mol).

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  11. Medium MCQ +4 / -1

    The ionization energy required to remove one electron from Na⁺ (g) is:

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  12. Medium MCQ +4 / -1

    The first ionization energy of nitrogen is higher than that of oxygen because nitrogen has:

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  13. Easy TRUE_FALSE +2 / -1

    Ionization energy generally decreases down a group.

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  14. Easy INTEGER +4 / -1

    The difference in electronegativity between fluorine (4.0) and cesium (0.7) is $x \times 10^{-1}$. Find $x$.

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  15. Easy MCQ +4 / -1

    Which property increases across a period from left to right?

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  16. Easy MCQ +4 / -1

    Which of the following shows correct order of atomic size?

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