Question

Explain Modern periodic table ?
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Answer 1

Answer:

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.

Explanation:

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Answer 2

Answer:

The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. In the modern periodic table, each element is represented by its chemical symbol. ... Elements in the same group have similar properties