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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 …

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 …
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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)

asked
User Eranga Kapukotuwa
by
8.5k points

1 Answer

3 votes
Beryllium (Be) and Calcium (Ca)
answered
User HNygard
by
8.4k points
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