Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
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Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
Question Bank
Classification of Elements and Periodicity in Properties
question_answer
Which one of the following elements exhibit maximum number of valence electrons?
A) Na
B) Al
C) Si
D) P
Correct Answer:
D
Solution :
P is in group 5 and has 5 valence electron. Number of valence electrons in Na, Al and Si are 1, 3 and 4.