1.

Write the electronic configuration of the elements given below and predict their period, group, block and also name the class, i.e., representative, transition etc. to which they belong. ""_(74)E

Answer»

SOLUTION :`""_(74)E=[""_(54)Xe], 4f^(14) 5d^(4) 6S^(2)`
Period=6, Block =d, Group =4+2=6
CLASS =Transition element


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