📝 Multiple Choice Question
General-science
Which element is a transition metal in Group 9 of the periodic table?
A
Cobalt (Co)
B
Copper (Cu)
C
Nickel (Ni)
D
Iron (Fe)
Explanation
Cobalt is a recognized transition metal located exactly in Group 9 of the periodic table, flanked by iron in Group 8 and nickel in Group 10.
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