Question

what are the merits of mendeleevs periodic table​

Answer 1

Answer:

Merits of Mendeleev PeriodicTable. Some gaps were left for the elements yet to be discovered. Thus, if a certain new element is discovered, it can be placed in a new group without disturbing any existing group.

Answer 2

Explanation:

1. atomic mass of boron 14.0 9 was changed to its correct value 9.4 and beryllium was placed before boron
2. medal of captivating places for the elements not discovered till then. free of these unknown elements were eka boron eka silicon and aluminium from there no neighbours and their atomic masses were indicated as 48 64 and 72 respectively. not only this but their properties were also predicted. later on this elements were found and named as scandium gallium and germanium respectively
3. anumandal is original periodic table there was no place left for noble gases such as helium neon and again there for Mendeleev created zero group without disturbing the original periodic table in which the noble gases are fitted very well

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