WBCS.LIVE practice question

Statement I The third period contains only 8 electrons and not 18 like fourth period. Statement II In third period, filling starts from 3s1​​ and complete at 3p6 whereas in fourth period it starts from 4s1 and complete after 3d10 and 4s2

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

Answer options

  1. Both the Statements are individually true and Statement II is the correct explanation of Statement I.
  2. Both the Statements are individually true but Statement II is not the correct explanation of Statement I.
  3. Statement I is true, but Statement II is false.
  4. Statement I is false, but Statement II is true.

Correct answer and explanation

Correct answer: Both the Statements are individually true and Statement II is the correct explanation of Statement I.