Multiple Choice
Which element has the following electron configuration: 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 3d10 4p6 5S₂?
A) Ca
B) Rb
C) Sn
D) Sr
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
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