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The transition metal (x) wich is cobalt and has 12 isotopes: (1) Determine the group of the element (x)in the periodic table. (2) Write the chemical formula of the sulphide of the element (x) in its most stable oxidation state.
Accepted Answer
Here is the answer:
(1) Cobalt (Co) belongs to Group 9 (VIIIb) of the periodic table, also known as the transition metals.
(2) The most stable oxidation state of cobalt is +2. Therefore, the chemical formula of cobalt sulfide in its most stable oxidation state is CoS.
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