Your session has expired

Your progress and purchases are safe. Log in again to continue.

Log in again
Aspirant Academy

MCQ

Electronic configuration and metallic character MCQ - Practice Questions with Answers

Solve 1 Electronic configuration and metallic character questions for RAS/RPSC preparation.

Practice questions

Q1Three hypothetical elements are labelled X, Y and Z. Their electronic configurations are X: 2, 8; Y: 2, 8, 7; and Z: 2, 8, 2, respectively. Which of the following statements 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.
Explanation

Element X has the electronic configuration 2, 8, so its outermost shell is complete and it is a noble-gas-like non-metal. Element Y has seven electrons in its outermost shell. It tends to gain one electron to complete that shell, so it is a non-metal. Element Z has two electrons in its outermost shell and tends to lose them, so it is a metal. Therefore, the statement that Y is a non-metal and Z is a metal is correct.

You've seen 1 of 1 sample questions

Unlimited practice on Electronic configuration and metallic character comes with the RAS Test Series + Practice pack or Gate Pass.

More topics in Science & Technology

Explore other subjects