MCQOPTIONS
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| 1. |
Which of the following configurations represents atoms of the elements having the highest second ionization energy [Pb. PMT 1998] |
| A. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{4}}\] |
| B. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}\] |
| C. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{1}}\] |
| D. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\] |
| Answer» D. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\] | |