Question

Given two defects in mendeleevs periodic table?
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Answer 1

Answer:

Following are the defects in the Mendeleev periodic table:

Anomalous Pairs. The following pairs of elements don't follow the follow Mendeleev's Principles: ...

Grouping of chemically dissimilar elements. ...

Position of Isotopes. ...

Electronic arrangement. ...

Separation of chemically similar elements. ...

The position of hydrogen.

Answer 2

Answer:

Two defects are..

1...Electronic arrangement

It does not explain the electronic arrangement of elements.

2..Separation of chemically similar elements

Elements that are chemically similar such as Gold and Platinum have been placed in separate groups.

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