Question

The tenth element in the periodic table is part of the

• A. First period
• B. Second period
• C. Fourth group
• D. Ninth group

Answer 1

The correct option is B

Second period

We know that there are 2 elements in the first period.

There are 8 elements in the second period. This makes the tenth element the last element of the 2nd period.

The last element in any period is a noble gas.

So, the tenth element belongs to noble gases.