number of valence electrons
They are the same
The Periodic Table of Elements
they are all part of the Periodic Table:)
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
An atom's "group" is its column position in the Periodic Table of the Elements. Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level.
Groups, in the periodic table of elements, are elements that all have the same number of valance electrons, which in turn tells us a lot about the kinds of chemical reactions that these elements will or will not undergo.
The atoms of the elements in the same group have the same number of valence electrons. This means that they react with other elements in a similar way. For example group 1. All the atoms in group 1 react with water and oxygen, so they have to be kept in paraffin-oil. Another example is group 18. They don't react with anything. The atoms of the same row have the same electron shells.
8a group is the group in which the atoms "try to be like."
The alkaline earth group has two valence electrons.
Such atoms belong to a group in the periodic table of elements.
There is a group of elements in the periodic table as the elements with same properties are clubbed together.
-1.