

MCQOPTIONS
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1. |
The electronic configuration of an element is. The atomic number and the group number of the element 'X' which is just below the above element in the periodic table are respectively |
A. | 23 and 5 |
B. | 23 and 15 |
C. | 33 and 15 |
D. | 33 and 5 |
Answer» D. 33 and 5 | |