contestada

Select the correct answer.
Which of these elements has four valence electrons?

A.
hafnium (Hf)

B.
radon (Rn)

C.
silicon (Si)

D.
sulfur (S)

Respuesta :

skippydoodlepeanut

Answer:

hf and si

Explanation:

hope that helped

gherbooo
The answer is C. silicon , hope this helps!