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The atomic numbers of four elements are ...

The atomic numbers of four elements are given below:

Which of the following pairs of elements belong to the same group of the periodic table?

A

W and X

B

W and Y

C

X and Z

D

Y and Z

Text Solution

Verified by Experts

The correct Answer is:
C
`{:("Element","Atomic no.", "Electronic configuration"),(X,12," 2, 8, 2"),(Z,20," 2, 8, 8, 2"):}`
Both X and Z have 2 electrons in their outermost shell. Hence, belong to same group.
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