Question

Which of the following elements has odd number of electrons in its valence shell?

• A. Hydrogen
• B. Chlorine
• C. Nitrogen
• D. All of the above

Answer 1

Answer: (D)

All of the above

The electronic configuration of hydrogen is $1$. The electronic configuration of chlorine is $2,8,7$. The electronic configuration of nitrogen is $2,5$. Therefore the valence shell of all the atoms has odd electrons.