CHEMISTRY HIGH SCHOOL

Which of these pairs of elements have the same number of valence electrons?hydrogen (H) and helium (He)
sodium (Na) and potassium (K)
carbon (C) and oxygen (O)
boron (B) and beryllium (Be)

Answers

Answer 1
Answer: The correct answer is the second option; sodium (Na) and potassium (K.)
Both sodium and potassium have the same number of valence electrons. 
Answer 2
Answer:

Answer:

The correct answer is the second option; sodium (Na) and potassium (K.)

Both sodium and potassium have the same number of valence electrons.

Explanation:

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