Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
JEE Main & Advanced
Chemistry
Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
Question Bank
Valency and oxidation state
question_answer
Which of the following gas does not have an octet or eight electrons in the outer shell [CBSE PMT 2001]
A)Ne
B)Ar
C)Rn
D)He
Correct Answer:
D
Solution :
\[He\] has the atomic number 2 so it does not have octet.