The subshell electronic configuration of an element P is given. 1s² 2s² 2p⁶ 3s² 3p⁶ 3d² 4s² Answer the following a.How many shells are present in this atom?(1) b. In which subshell, the last electron was added? (1) c. Which block does it belong to ? (1) d. Find the group number and period number? (1) e. This element forms coloured compounds . Give reason. (1) f. Write down the subshell electronic configuratio of p²+ ion?
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1 4 shells as valence shell is 4s2
2 In 4s subsheell last e was added
3 d block
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