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Select from the following lists, the elements belonging to same group,

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An Intiative by Sri Chaitanya

Z = 5, 11, 27, 19

Z = 12, 38, 4, 88

Z = 9, 16, 3, 35

Z = 24, 47, 42, 55

answer is A.

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Detailed Solution

Be(Z=4),Mg(Z=12),Sr(Z=38),Ra(Z=88)

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