Question

Why is iron \[56\] considered as the most stable nucleus?

Answer 1

Hint: In chemistry, periodic tables play a vital role. In the periodic table there are totally \[118\] elements. In the periodic table there are totally \[18\] columns and \[7\] rows. The columns are called groups. Hence, \[18\] groups in the periodic table. The rows are called periods. Hence, totally \[7\] period in the table. Iron is one of the metallic elements in the periodic table. The symbol of iron is derived from Latin form ferrum. It is present in the first transition series. Iron is the fourth most common element in the earth crust in the elemental list. The appearance of the iron is lustrous metallic with greyish color. Each element in the periodic table has a certain group and period. In that case iron is one of the elements in the period. The atomic number of iron is \[26\] and the symbol is \[{\text{Fe}}\]. The mass number of the iron is\[55.845\].

Complete answer:
Iron \[56\] is one of the isotopes in iron atoms. The nucleus in iron \[56\] is the most stable nucleus. The stability of this nucleus due to all the nucleons having lowest mass compared to other elements. The binding of per nucleon in Iron \[56\] is $8.8MeV$ , due to this strong binding energy nucleons become efficiently bound nuclei. The breaking of nucleons in iron \[56\] is not easy, It takes more energy.
According to the above discussion, we conclude iron \[56\] is considered as the most stable nucleus.

Note:
We need to know that the atomic number of the element is nothing but the number of electrons or number of protons. The mass number of the atom is nothing but the sum of the number of protons and the number of neutrons. Iron is one of the transition metals in the period. The nature of the iron is metallic solid. In the modern period, iron plays a vital role in industrial development. In our body also iron plays a vital role through haemoglobin in the blood. The deficiency of iron in the human body is known as anaemia.