Question

1A, 3B, and 7A are examples of
__________
on the periodic table.

Answer 1

group number

Step-by-step explanation:

Answer 2

1 A, 3 B, and 7 A are examples of group number on the periodic table.

Step-by-step explanation:

The table that consists of elements arranged systematically on the basis of atomic numbers is called periodic table. Groups and periods are two important part of a periodic table. A periodic table contains seven horizontal rows, called as periods and 18 vertical columns, called group.

The groups name is given in the form of number and alphabets. It represents the columns present in the periodic table.

Hence, 1 A, 3 B, and 7 A are examples of group number on the periodic table.