The electronic configuration of three el...

The electronic configuration of three elements X, Y and Z are X - 2, 8, Y - 2, 8, 6 and Z - 2, 8, 1. Which of the following is correct ?

X is a metal

Y is a metal

Z is a non-metal

Y is a non-metal and Z is a metal.

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The correct Answer is:

Y is sulphur (S) while Z is sodium (Na).

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