Chemistry, 29.06.2019 06:00 angieboyd1pe3jme
Which of these elements has two valence electrons? a. hydrogen (h) b. barium (ba) c. nitrogen (n) d. krypton (kr) e. bromine (br)
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Which of these elements has two valence electrons? a. hydrogen (h) b. barium (ba) c. nitrogen (n) d...
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