Question

merits of menelevs periodic table​

Answer 1

Answer:

i) Give more weight to similarities in properties than to atomic mass in the arrangement. ...

ii) Correction of atomic mass. ...

iii) Prediction of new elements. ...

iv) Noble gases were discovered much later.

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Answer 2

Answer:

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1) Mendeleev did not explain the position of hydrogen in the periodic table.

2) In the periodic table there is no place for the isotopes of an element.

3) In the periodic table the increasing order of atomic mass could not be maintained.

4) Mendeleev's periodic law predicted the existence of certain elements such as gallium, scandium and germanium, which were not discovered at that time.

5) Mendeleev's periodic table could also predict the properties of various elements based on their position in the periodic table.

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