Question

5 uses of mendleeves periodic table

Answer 1

1. Mendeleev left some gaps in his periodic table for the further elements which were'nt discovered
2. He predicted the existence of some elements that had not been discovered at that time .
3. He named the predicted elements by prefixing a sanskrit numeral eka(one)

• scandium as eka boron
• gallium as eka aluminium
• germanium as eka silicon

and his predictionns were right.

4. Noble gases like helium ,neon, argon have been mentioned .

5. When these gases were discovered lately they could be placed in a new group without disturbing the existing order.

Hope it may help youu!

Answer 2

Answer:

Russian chemist Dmitri Mendeleev was the first to publish a recognizable periodic table in 1869, developed mainly to illustrate periodic trends of the then-known elements.

Explanation: