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Question 30 The electronic configurations of three elements X, Y and Z are X — 2, 8; Y — 2, 8, 7 and Z — 2, 8, 2. Which of the following is correct?(a) X is a metal.(b) Y is a metal.(c) Z is a non-metal.(d) Y is a non-metal and Z is a metal.

Answer»

Question 30

The electronic configurations of three elements X, Y and Z are

X — 2, 8; Y — 2, 8, 7 and Z — 2, 8, 2. Which of the following is correct?


(a) X is a metal.

(b) Y is a metal.

(c) Z is a non-metal.

(d) Y is a non-metal and Z is a metal.


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