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Electronic Configuration of Elements

Assertion: El...

Question

Assertion: Elements in the same column have similar properties.
Reason: Periodic properties of elements is a function of atomic number.

A

Both assertion and reason are true and reason is the correct explanation of assertion.

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B

Both assertion and reason are true but reason is not the correct explanation of assertion.

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C

Assertion is true but reason is false.

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D

Both assertion and reason are false.

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Solution

The correct option is B Both assertion and reason are true but reason is not the correct explanation of assertion.
Elements in the same group (column) have the same number of electrons in their valence shell or similar valence shell electronic configuration. Thus, we observe a similar trend in the chemical properties of the elements in the same group.

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