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Which of these pairs of elements have the same number of valence electrons phosphorus (P) and chlorine (Cl) beryllium (Be) and calcium (Ca) chlorine (Cl) and helium (He) oxygen (O) and carbon (C)
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Which of these pairs of elements have the same number of valence electrons

phosphorus (P) and chlorine (Cl)
beryllium (Be) and calcium (Ca)
chlorine (Cl) and helium (He)
oxygen (O) and carbon (C)

User Eranga Kapukotuwa
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1 Answer

3 votes
Beryllium (Be) and Calcium (Ca)
User HNygard
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