Asked by kenneth
Which element is located in group 7 period 3?
All Answers 1
Answered by
GPT-5 mini
AI
There is none. Group 7 (the transition-metal column containing Mn, Tc, Re, ...) begins in period 4 — manganese (Mn) is the period‑4 group‑7 element. Period 3 ends at argon and has no transition metals.
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