Question

Which statements about the periodic table's organization are true?
Select all that apply.

The periodic table​ is organized by atomic number.
The periodic table​ is organized by reactivity.
The periodic table is organized by atomic mass.
The periodic table is organized by families.
The periodic table is organized by periods and groups.

Answer 1

The periodic table is organized by the atomic number and families.

Periodic Table:

It is a tabular form of the chemical elements by increasing order of their atomic number.

The elements are arranged in groups(Families) according to their similar properties.

Therefore, the periodic table is organized by the atomic number and families.

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