A. Magnesium
B. Sodium
C. Silicon
D. Aluminum
Answer: Magnesium
A. Magnesium
B. Sodium
C. Silicon
D. Aluminum
Answer: Magnesium
Additional Information: Magnesium has 12 electrons and the configuration is 1s² 2s² 2p⁶ 3s².
Subjects: Atomic Structure, Chemistry