From left to right, they are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 and 18.
groups are the vertical columns on the periodic table
The periodic table is arranged from left to right in the order of atomic numbers.
Groups of the Periodic Table are defined as vertical colums. There are 18 groups in the periodic table.
The periodic table has 7 periods and 18 groups. The order of elements is governed by the number of protons.
There are 18 groups in the periodic table of elements.
Elements are arranged on the Periodic Table in the order of the atomic number, in groups and periods.
groups are the vertical columns on the periodic table
The periodic table is arranged from left to right in the order of atomic numbers.
the vertical columns in the periodic table are known as groups.
The vertical columns are called groups in a periodic table.
groups are the vertical columns on the Periodic Table
Groups of the Periodic Table are defined as vertical colums. There are 18 groups in the periodic table.
groups
- the periodic table is organized in periods and groups- chemical elements are listed in the order of the atomic number- the periodic table obey the law of periodicity
There are 18 groups and 7 periods in the modern periodic table.
Columns in the periodic table are called "groups" and there are 18 groups in the periodic table.
7 periods and 18 groups are there on the modern periodic table.