They have the same number of valence electrons (electrons in their outermost shell). They do not have the same number of shells however.
The difference in atomic number between adjacent elements is always one (1).
On the left of the periodic table, especially group 1 and group 2 elements.
Elements with full outer shells, the noble gas elements, are located in the column at the extreme right of the periodic table.
The transition elements and the d block elements are located in the middle of the periodic table. They are placed in groups 3 to 12, and they include elements from scandium (Sc) to zinc (Zn) in the fourth period and onward. These elements typically have partially filled d orbitals in their electron configurations.
Alkali metals are group-1 elements. They are located at extreme left in periodic table.
The periodic table comprises of metals (on the left) ,non-metals(on the right ) and transition elements (between metals and non-metals) in the periodic table.
Stable Elements in the periodic table are located in Group 18 of the periodic table.It is a group of noble gases.Noble gases are considered most stable in nature.
Metals are located on left side in periodic table.Eg-group 1,2 elements
Representive elements
The difference in atomic number between adjacent elements is always one (1).
On the left of the periodic table, especially group 1 and group 2 elements.
Elements with full outer shells, the noble gas elements, are located in the column at the extreme right of the periodic table.
Nonmetals.
Alkali metals are group-1 elements. They are located at extreme left in periodic table.
The transition elements and the d block elements are located in the middle of the periodic table. They are placed in groups 3 to 12, and they include elements from scandium (Sc) to zinc (Zn) in the fourth period and onward. These elements typically have partially filled d orbitals in their electron configurations.
Gaseous elements are typically found on the right side of the periodic table, in the nonmetals group.
Transition metals such as titanium, iron, and copper act as a bridge between elements on the left and right side of the periodic table. This is because they exhibit a wide range of chemical properties and can form multiple oxidation states. Transition metals are located in the d-block of the periodic table.