CBSE Class 11-science Answered
How can you predict the group, period and block of an element explain?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
To know the group, period and block of an element first of all we write the electronic configuration of an element. The period is represented by the principal quantum number of the valence shell. Block is predicted on the basis of sub shell which receives the last electron. Group is predicted on the basis of the number of electrons in the penultimate or the outer most shell.
Answered by | 04 Jun, 2014, 03:23: PM
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