Which of the following pairs of elements have the same valence electron configuration?
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Chemistry, 30.05.2020 01:04 mmlordpepe9256
Which of the following pairs of elements have the same valence electron configuration?
aluminum (Al) and argon (Ar)
arsenic (As) and gallium (Ga)
fluorine (F) and chlorine (Cl)
lithium (Li) and helium (He)
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