There are 18 families. They are made according to the properties of elements. So the elements in a group has similar properties.
The another term used is Families. The vertical columns are referred as groups or families.
There are 18 columns on the periodic table.They are called groups or families.
Groups on the periodic table have similar chemical and sometimes physical properties. Families (human families) generally have similar properties, hence families on the periodic table.
hassium
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
The another term used is Families. The vertical columns are referred as groups or families.
7The Periodic Table has 7 periods and 18 groups.
7
There is only one Periodic Table.
21
There are 18 groups in periodic table. They are also referred as families.
There are 18 columns on the periodic table.They are called groups or families.
Mendeleev's created the periodic table in 1869 since then it has been as new discoveries have been made
There are no compounds in the periodic table, only elements. There are between 114 and 117 elements (some are awaiting confirmation and a couple remain unnamed).
Groups on the periodic table have similar chemical and sometimes physical properties. Families (human families) generally have similar properties, hence families on the periodic table.
The periodic tables.
hassium