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Which of the following statements is cor...

Which of the following statements is correct?

A

Among Li, Na, K and Rb strongest electropositive element is Li.

B

Be, Mg, Ca and Rb are the elements of same group.

C

Li, Na, K and Rb are the elements of same group

D

The number of valence electrons in Be and Mg is 3.

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The correct Answer is:
C
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