1.

The electronic configuration of the element which is just above the element with atomic number 43 in the same periodic group is [MNR 1992; UPSEAT 1999, 2000, 02]

A. \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{5}}\,4{{s}^{2}}\]
B. \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{10}}\,4{{s}^{2}}\,4{{p}^{5}}\]
C. \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{6}}\,4{{s}^{1}}\]
D. \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}3{{p}^{6}}\,3{{d}^{10}}\,4{{s}^{1}}\,4{{p}^{6}}\]
Answer» B. \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{10}}\,4{{s}^{2}}\,4{{p}^{5}}\]


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