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
The valency shell of calcium contains [JIPMER 2000]
A)8 electrons
B)6 electrons
C)4 electrons
D)2 electrons
Correct Answer:
D
Solution :
Valence shell configuration for IIA group elements is : \[n{{s}^{2}}\]