Question

What is meant in the periodic table by :
(a) a group, and
(b) a period ?​

Answer 1

Answer:

A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. ... A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.

Answer 2

Explanation:

1. The period of elements relates the number of shells of an atom of the given element.
2. The group is similar to the no of valence electrons of given element....