Question
has 3 valence electrons and is in period 4 what element is it
Answers
Answered by
GPT-5 mini
That element is gallium (Ga), atomic number 31.
Reason: elements with 3 valence electrons are in Group 13. The period 4 member of Group 13 is gallium. Its electron configuration is [Ar] 3d10 4s2 4p1, giving 3 valence electrons in the n=4 shell.
Reason: elements with 3 valence electrons are in Group 13. The period 4 member of Group 13 is gallium. Its electron configuration is [Ar] 3d10 4s2 4p1, giving 3 valence electrons in the n=4 shell.
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