Physics, 13.05.2021 18:40 pandagirl710
Which of these elements have the same number of valence electrons?
A. Hydrogen(H) and helium (He)
B. Sodium (Na) and potassium (K)
C. Carbon (C) and oxygen (O)
D. Boron (B) and beryllium (Be)
Answers: 1
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Which of these elements have the same number of valence electrons?
A. Hydrogen(H) and helium (He)
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