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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 be…

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 be…
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5 votes
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)

asked
User Tom Future
by
8.3k points

2 Answers

3 votes

Answer:

Sodium (Na) and potassium (K)

Step-by-step explanation:

I took the test.

answered
User Mike Biglan MS
by
7.8k points
3 votes
Pairs of elements that have the same number of valence electrons are:
sodium (Na) and potassium (K).
answered
User Maccettura
by
8.3k points
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