There are 18 groups in the modern Periodic Table. The groups are also referred as families.
7 periods and 18 groups are there on the modern periodic table.
18
7 periods and 18 groups are there on the modern periodic table.
9
There are 18 groups and 7 periods in the modern periodic table.
The Periodic Table has 18 groups and 7 periods.
There are a total of 18 groups on The Periodic Table of Elements.
There are 18 groups in the periodic table of elements.
There are 18 groups on the periodic table.
4 (including man-made metals)
The modern periodic table has seven periods.
There are 18 groups in periodic table. They are also referred as families.