Phillips Delgado
07/12/2023 · High School
\( \mathrm{Si} 3 s^{2} 3 p^{2} \) Express your answer as an integer.
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Step-by-step Solution
The electron configuration \( \mathrm{Si} \) refers to silicon, which has an atomic number of 14. The notation \( 3s^2 3p^2 \) indicates the distribution of electrons in the outermost shell (the third shell in this case).
To find the total number of electrons represented by the configuration \( 3s^2 3p^2 \):
- The \( 3s^2 \) indicates there are 2 electrons in the 3s subshell.
- The \( 3p^2 \) indicates there are 2 electrons in the 3p subshell.
Adding these together:
\[
2 \, (\text{from } 3s) + 2 \, (\text{from } 3p) = 4
\]
Thus, the total number of electrons in the configuration \( 3s^2 3p^2 \) is \( \boxed{4} \).
Quick Answer
The total number of electrons in \( 3s^2 3p^2 \) is 4.
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