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Properties of Alpha, Beta and Gamma Radiations

Ionisation en...

Question

Ionisation energy ..................... down a group and ..................... along a period.

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Solution

Ionisation energy decreases down a group and increases along a period.

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Ionisation energy ___ down a group.

Q. Ionisation energy increases across a period but decreases down a group.

Q. Define ionisation enthalpy. How does it varies along a period and down the group in the periodic table.

Q. (a) Explain the variation of ionisation energy along the group and period.
(b) Write any five uses of fluorine.

Q. Assertion :Ionisation energy decreases on moving down the group. Reason: Force of attraction between electrons and nucleus decreases on moving down the group.

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Properties of Alpha, Beta and Gamma Radiations

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