Question

jot down the features of modern periodic table

Answer 1

• Features of Modern Periodic Table -

There are eighteen vertical columns known as groups in the modern periodic table which are arranged from left to right and seven horizontal rows which are known as periods.

• The elements of this group form salts.

• They are noble gases and under normal conditions they are inert.

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Answer 2

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Characteristics of Modern periodic table

⏺️ The elements are arranged based on their increasing atomic number.

⏺️ There are 7 periods and 18 groups in the table.

⏺️ The inert gases i.e. He, Ne, Ar, etc. ...

⏺️ All the groups are divided into sub groups A and B except 0 and VIII group in the modern periodic table.