Question

long form of the periodic table​

Answer 1

Answer:

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Explanation:

Long Form of Periodic Table. The long form of the periodic table is based upon the electronic configuration of the elements. It is the present form or the modern periodic table of elements. The modern periodic table of elements consists of 18 vertical columns and 7 horizontal rows.

Answer 2

Explanation:

The long form of the periodic table is based upon the electronic configuration of the elements. It is the present form or the modern periodic table of elements. ... It keeps all the elements with similar electronic configuration under each other in the same vertical column. Groups are these vertical columns.