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
Extended or long form of periodic table
question_answer
In which of the following groups all the three members are of the alkaline earth metals family
A)\[Al,\,Sr,\,Ti\]
B)\[Li,\,Na,\,K\]
C)\[Mg,\,Ba,\,Ca\]
D)\[Rb,\,Cs,\,Fr\]
Correct Answer:
C
Solution :
\[Mg,\,Ba,\,Ca\] have \[n{{s}^{2}}\]configuration.