Why do elements within the same group have similar chemical properties? Because they have the same __________.
A. number of valence electrons C. Electron configuration
B. atomic radius D. atomic mass
A. number of valence electrons C. Electron configuration
B. atomic radius D. atomic mass
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Answer:
A. number of valence electrons
Elements in the same group have similar properties because they have the same number of valence electrons in their outermost shell
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