jackvalen jackvalen

23-03-2017
Chemistry

Answered

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)

Verified Answer :

ErebusX ErebusX

23-03-2017

Beryllium (Be) and Calcium (Ca)

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