There are 18
7 periods and 18 groups are there on the modern periodic table.
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.
There are 18 groups in periodic table. They are also referred as families.
There are 18 groups in the modern periodic table. The groups are also referred as families.
There are 18 groups and 7 periods in the modern periodic table.
groups are the vertical columns on the periodic table
7The periodic table has 7 periods and 18 groups.
There are a total of 18 groups on The Periodic Table of Elements.
the vertical columns in the periodic table are known as groups.
18