Question

State the advantage of Mendeleev
periodic Table​

Answer 1

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In the Mendeleev’s Periodic Table elements are arranged in the increasing order of their atomic masses.

The Following are some merits of Mendeleev’s Periodic Table:

1.Atomic masses of some elements were revised so as to give them a proper place in the periodic table in accordance to their properties.

E.g.The previously determined atomic mass of beryllium 14.09 was changed to it correct value 9.4 and then beryllium was placed before boron.

2.Mendeleev kept vacant places in the periodic table for elements not discovered till then He named these elements as eka-boron, eka-aluminium, eka-silicon later on when these elements were discovered

⚫eka boron was named Scandium

⚫eka aluminium was named Gallium

⚫eka silicon was named Germanium

The properties of these elements also matched with those predicted by Mendeleev.

I Hope this helps to you! I tried to explain this as much as short possible but here you go!

If you’ve any Doubts to me feel free to Ask me! I’ll happy to help you! :)

Answer 2

Answer:

hii

Explanation:

see the attachment

I hope it's helpful ☺️