Question

State any five features of modern period table? ​

Answer 1

Answer:

The features of modern periodic table are:

1) the table is arranged in increasing atomic no.

2) it has 18 vertical columns and 7 horizontal rows called groups and periods respectively

3) The groups are divided into sub groups

4) the elements in same group have same valency

5) elemnts in same periods have same no.of shells

Explanation:

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