Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
11th Class
Chemistry
Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
question_answer63)
Electronic configuration of four
elements A, B, C and D are given below :
A. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}\]
B. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{4}}\] C. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{1}}\]
D. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{5}}\]
Which of the following is the
correct order of increasing tendency to gain electron?
(a) A < C < B <
D (b) A < B < C < D (c) D
< B < C < A (d) D < A < B < C