Mendlev periodic table

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Mendlev periodic table

Posted by Vikas Rathee123 5 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Satyam Lodhi Rajput 5 years, 3 months ago

8 colonm and 6 rows

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Harsh Kumar 5 years, 3 months ago

mandeleev periodic table are base on atomic mass but they arrange all metals acc.to their chemical properties and left some space for those element who could not discover at this time..

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Meghna Thapar 5 years, 3 months ago

Features of Mendeleev’s Periodic Table:

There are seven horizontal rows in the periodic table, numbered from 1 to 7. These seven rows are called periods.
There are eight vertical columns numbered from I to VIII. These eight columns are called groups. Groups I to VII are further divided into sub groups A and B.
The properties of elements in a particular period show regular gradation from left to right.

Achievements of Mendeleev’s Periodic Table:

Mendeleev kept some blank spaces in the periodic table for the elements which were yet to be discovered.
He also predicted properties of some elements even before their discovery which were later found to be correct.
Mendeleev’s periodic table could accommodate noble gases when they were discovered.

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Posted by Pandey Ji 6 months ago

CBSE > Class 10 > Science