An atom has the electronic configuration of \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}\], \[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},4{{s}^{2}}4{{p}^{5}}\]. Its atomic weight is 80. Its atomic number and the number of neutrons in its nucleus shall be [MP PMT 1987]

An atom has the electronic configuration of \[1{{s}^{2}},2{{s}^{2}}2{{

1.	An atom has the electronic configuration of \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}\], \[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},4{{s}^{2}}4{{p}^{5}}\]. Its atomic weight is 80. Its atomic number and the number of neutrons in its nucleus shall be [MP PMT 1987]
A.	35 and 45
B.	45 and 35
C.	40 and 40
D.	30 and 50
Answer» B. 45 and 35

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An atom has the electronic configuration of \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}\], \[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},4{{s}^{2}}4{{p}^{5}}\]. Its atomic weight is 80. Its atomic number and the number of neutrons in its nucleus shall be [MP PMT 1987]

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