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3 votes
Select the correct answer.

Which of these elements has four valence electrons?

A.
hafnium (Hf)

B.
radon (Rn)

C.
silicon (Si)

D.
sulfur (S)

2 Answers

5 votes

Answer:

hf and si

Step-by-step explanation:

hope that helped

User Geoff Maddock
by
4.4k points
1 vote
The answer is C. silicon , hope this helps!
User Brendan Frick
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4.4k points