The melting temperature properties generally change as you go down the columns of the Periodic Table by decreasing for metals and increasing for non-metals.
The density properties generally change as you go down the columns of the Periodic Table by increasing.
Elements are organised in terms of properties in same column. Properties are found to be periodic .
There are 18 A columns on the periodic table, also known as the groups. These columns represent elements with similar chemical properties and are numbered from 1 to 18.
The periodic table is organised in order of increasing atomic number so that their properties could be determined in same rows and columns
Groups are arranged as columns in the periodic table; the contained elements have similar properties.
periodic table
In the columns of the periodic table, chemical properties are similar.
this put elementswith similar chemical properties in columns
It groups elements with similar properties in vertical columns
Atomic Weightsthey have same number of valence electrons and hence similar chemical properties.
Dmitri Mendeleev is credited for creating the periodic table.
families are vertical columns of elements they have similar chemical and physical properties.