Q. Which one of the following represents noble gas configuration?

A) 1s^{2},2s^{2} 2p^{6},3s^{2}3p^{6}3d^{10}, 4s^{2} 4p^{6}4d^{10}, 5s^{2},5p^{6} 5d^{6},6s^{2}
B) 1s^{2},2s^{2} 2p^{6},3s^{2}3p^{6}3d^{10},4s^{2} 4p^{6}4d^{10} 5s^{2}5p^{6} 5d^{1}, 6s^{2}
C) 1s^{2},2s^{2}2p^{6},3s^{2}3p^{6}3d^{10}, 4s^{2} 4p^{6}4d^{10} , 5s^{2}5p^{6}
D) 1s^{2},2s^{2}2p^{6},3s^{2}3p^{6}3d^{10}, 4s^{2} 4p^{6}4f^{14} ,5s^{2}5p^{6} 5d^{1}
Explanation

(c)
Option(c) has noble gas configuration as it has 8 electrons in valence shell.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.