10
practice testMultiple Choice

Practice Test

Question 10 • Chemistry

Which shows the electron configuration for Silicon Si ?

Answer
A
Ar times 4 times s squared times 3 times d to the 10th power times 4 times p to the 4th power
B
Ar times 3 times d to the 1th power times 4 times s squared
C
Ne times 3 times s squared times 3 times p to the 4th power
D
Ne times 3 times s squared times 3 times p squared

Explanation

Silicon has atomic number 14, so a neutral silicon atom has 14 electrons. The shorthand configuration begins with neon, which accounts for 10 electrons, and the remaining 4 fill 3s² and 3p². Therefore, the correct choice is “Ne times 3 times s squared times 3 times p squared.”

AI-written and checked against the verified answer.

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