Question

the valence shell in a silicon atom has the number designation of

select one:

a. 1
b. 3
c. 2
d. 0

Explanation:

Step1: Determine the atomic number of silicon

Silicon (\(Si\)) has an atomic number of \(14\).

Step2: Write the electron configuration

The electron configuration of silicon is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{2}\).

Step3: Identify the valence shell

The valence shell is the outermost shell. Here, the outermost shell is the \(n = 3\) shell. So the number designation of the valence shell in a silicon atom is \(3\).

Answer:

B. 3