Metalloids
Periodic table can be classified as:MetalsTransition elementsNon-metalsThey occupy different groups.
nonmetals
The elements in group 3-12 are transition elements. They are placed in centre of periodic table.
Elements of the Periodic Table
There are 18 groups in the periodic table of elements.
The Periodic Table of the Elements contains every element known to man. On the Periodic Table, the elements are classified into periods (rows) and groups (columns). Elements are placed near elements with similar characteristics to them.
the periodic table
Elements of the periodic table
periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.
There are 18 groups and 7 periods in the modern periodic table.
Groups in the periodic table are the vertical columns in which the elements are arranged.
There are 18 groups in the Periodic Table of elements.