WBCS.LIVE practice question

In the modern periodic table, which two periods have 8 elements?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 4 and 5
  2. 3 and 4
  3. 1 and 2
  4. 2 and 3

Correct answer and explanation

Correct answer: 2 and 3