Question

Use the periodic table to find the element has 4 valence electrons and 3 energy levels.
Answered by GPT 3.5
The element with 4 valence electrons and 3 energy levels is Silicon (Si).
Answer

a
Silicon (Si)
b
Scandium (Sc)
c
Gallium (Ga)
d
Aluminum (Al)
Answered by GPT 3.5
c) Gallium (Ga)