What is the valency of the elements that are placed in group 18?
What is the valency of the elements that are placed in group 18?
Valency
The combining capacity of an element is measured using its valency and is defined as the number of electrons that must be lost or accepted by an atom to obtain stable electronic configuration. An atom acquires stable configuration when its outermost shell is filled completely. The valency of an atom is generally equal to the magnitude of its oxidation state. The valency is determined from the electron configuration of the atom.
Valency of group 18
The elements of group 18 are called inert gases or noble gases. The outer orbital of these elements are completely filled and therefore, they are the least reactive elements in the periodic table. Since the outer orbital of the noble gases are already filled, they have the most stable configuration. Therefore, no electron has to be removed or added to these elements. The valency of group 18 elements is zero.
The group 18 elements include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). They all exist in their monoatomic state due to their stable configuration.
Valency
The combining capacity of an element is measured using its valency and is defined as the number of electrons that must be lost or accepted by an atom to obtain stable electronic configuration. An atom acquires stable configuration when its outermost shell is filled completely. The valency of an atom is generally equal to the magnitude of its oxidation state. The valency is determined from the electron configuration of the atom.
Valency of group 18
The elements of group 18 are called inert gases or noble gases. The outer orbital of these elements are completely filled and therefore, they are the least reactive elements in the periodic table. Since the outer orbital of the noble gases are already filled, they have the most stable configuration. Therefore, no electron has to be removed or added to these elements. The valency of group 18 elements is zero.
The group 18 elements include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). They all exist in their monoatomic state due to their stable configuration.
