Multiple choice

Arrange the elements O, B, N and F in the increasing order of their atomic sizes.

  1. F < O < N < B

  2. B < N < O < F

  3. O < F < N < B

  4. B < O < N < F

  5. F < N < B < O
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The second period in the modern periodic table consists of the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon, in that order. The given elements belong to the second period. As we move from left to right of a period, the atomic size decreases. Hence, the first option is correct.

Keep practicing — related questions