What is element 61 called?
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Pm:- Promethium ...
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Element 61 is known as Promethium.
- The atomic number of element is 61 and hence belongs to f block as the last electron enters if the f subshell and hence belong to class of lanthanoids.
- The element is represented by Pm and has configuration as [Xe]4f^5, 5d^0, 6s^2. It is also known as rare earth element.
- The only stable oxidation state of promethium is +3, but since it belongs to f block so can show variable oxidation state.
- Promethium is used for atomic batteries and in light signals.
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