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 group of elements eliminates electron easily
A)N, P, As
B)O, S, Se
C)Li, Na, K
D)Cl, Ba, I
Correct Answer:
C
Solution :
Li, Na, K, contains only one \[{{e}^{-}}\] in outer most orbit.