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The electronic configuration of two atoms X and Y are as follows: X - 1s 2 2s 22...


Question

The electronic configuration of two atoms X and Y are as follows: X - 1s 2 2s 22p 63s 1, Y -1s 22s 22p 63s23p 64s 2 which of the statements below is true of the position of X and Y in the Periodic Table?

Options

A) x belongs to group 1, Y belongs to period 2,

B) x belongs to group 1, Y belongs to period 4

C) x belongs to group 2, Y belongs to period 1

D) x belongs to group 3, Y belongs to period 2

E) x belongs to group 3, Y belongs to period 4


The correct answer is B.


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