Question

write a note on structure of the modern periodic table

Answer 1

ANSWER.....

The modern periodic table is being made by Moseley. The modern periodic law states that"Physical and Chemical properties of elements are periodic function of their atomic number ".Although it's being used it has some short coming like it don't have fixed place for Lanthanide and Actinide. It's comprises elements arranged in periods and groups. Where the elements in the group have same valancey electrons and increase in number of shells by one. And in period there is same number of shells and the valancey electrons increases by one.


Hope it helps

Answer 2

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. The seven rows of the table, called periods, generally have metals on the left and non-metals on the right. The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases. Also displayed are four simple rectangular areas or blocks associated with the filling of different atomic orbitals.


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