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prediction of period

Prediction of period, group and block of a given element

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal 5 Comments

The period of an element corresponds to the principal quantum number of the valence shell. The block of an element corresponds to the type of orbital which receive the last electron. The group of an element is predicted from the number of electrons in the valence shell or/and penultimate shell as follows: a)For s block elements ,group number is equal to the number of … [Read more...] about Prediction of period, group and block of a given element

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