Question

1. use the periodic table to choose the best answer to find the electron configuration for silicon.

how many electrons does silicon have?
7
4
3
14

1. use the periodic table to choose the best answer to find the electron configuration for silicon.

how many energy levels does silicon have?
4
14
7
3

Explanation:

• For the first question: The atomic number of silicon (Si) is 14. In a neutral atom, the number of electrons is equal to the atomic number.
• For the second question: The period number of an element in the periodic table indicates the number of energy levels. Silicon is in period 3.

Answer:

1. 14
2. 3