Question on: SS2 Chemistry - Atomic Structure and Periodicity
Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1?
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A
Potassium (K)
B
Calcium (Ca)
C
Rubidium (Rb)
D
Francium (Fr)
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Correct Option: A
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