ElloNico0la ElloNico0la

12-06-2016
Chemistry

contestada

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)

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taskmasters taskmasters

12-06-2016

Pairs of elements that have the same number of valence electrons are:
sodium (Na) and potassium (K).

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MarkLemley MarkLemley

22-11-2020

Answer:

Sodium (Na) and potassium (K)

Explanation:

I took the test.

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