The periodic table is grouped because of their chacteristics. They have similarities and differences, of course. Groups are also known as families or groups of the same characteristics.Periods, on the other hand, are the rows of the periodic table, containing atoms of similar atomic number.
At a more fundamental level, the elements are grouped by the number of electrons in the "outer shell", i.e. the highest energy level in which electrons sit within the atom. These energy levels are themselves subdivided into orbitals, as represented by the different "blocks" of the periodic table. For example:Strontium (Sr) has 38 electrons. These are arranged into five main energy levels, or shells (Period 5). The outer of these shells contains two electrons (Group 2) which lie in the S-subshell (S block).
There are 18 groups and 7 periods in the modern periodic table.
Groups in the periodic table are vertical columns that contain elements with similar chemical properties. Elements in the same group have the same number of valence electrons, which determines their reactivity and chemical behavior. There are 18 groups in the periodic table.
7 periods and 18 groups are there on the modern periodic table.
Colunms are named 'Groups'. Rows are named 'Periods'.
Modern periodic table has 7 periods and 18 groups.
groups are the vertical columns on the periodic table
the vertical columns in the periodic table are known as groups.
7 periods and 18 groups are there on the modern 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
There are a total of 18 groups on The Periodic Table of Elements.
There are 18 groups in the periodic table of elements.
group or family
There are 18 groups on the periodic table.
There are 18 groups in periodic table. They are also referred as families.
The transition metals are located in groups 3 - 12 on the Periodic Table.