3 fill in the blank 1 point silicon (si) has type your answer... energy levels and has type your answer…
3 fill in the blank 1 point silicon (si) has type your answer... energy levels and has type your answer... valence electrons.
Answer
Answer:
First blank: 3 Second blank: 4
Explanation:
Step1: Recall electron - shell arrangement
Silicon has atomic number 14. Its electron configuration is 1s²2s²2p⁶3s²3p².
Step2: Determine energy levels
The electrons are in 1st, 2nd and 3rd energy levels, so 3 energy levels.
Step3: Determine valence electrons
Valence electrons are in the outermost shell. In 3s²3p², there are 2 + 2 = 4 valence electrons.