Question

Write the features of modern periodic table.

Answer 1

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Answer 2

Modern periodic table has the following features :-

• it has 18 groups and 8 periods.

• the position of isotopes is properly maintained.

• it is based on increasing number of atomic numbers.

• lanthanoids and actinoids are placed separately in the table.

• gases which have completed their octet are placed in the zero group.

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