Question

The elements on the periodic table are arranged in the_______ order of their _______ numbers​

Answer 1

Answer:

The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.

Explanation:

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Answer 2

Answer:

Increasing, Atomic number

Explanation:

The elements on the periodic table are arranged in the increasing order of their atomic numbers​