p - block elements || Introduction || Lecture - 1 || Inorganic Chemistry | B. Sc. 1st year||2nd Sem.

p - block elements || Introduction || Lecture - 1 || Inorganic Chemistry | B. Sc. 1st year||2nd Sem.

This is the General Introduction of P-Block Elements.

There are six groups of p–block elements in the periodic table numbering from 13 to 18. Boron, carbon, nitrogen, oxygen, fluorine and helium head the groups. Their valence shell electronic configuration is ns2np1.Boron in available limited quantities. Aluminium is readily available on our planet. It is the third most abundant element available. P-block metals have classic metal characteristics: they are shiny, they are good conductors of heat and electricity, and they lose electrons easily. Generally, these metals have high melting points and readily react with nonmetals to form ionic compounds. While moving down the group, the atomic radius of elements increases. In the Boron family, the Atomic radius of Ga is less than AI. This is due to the variation of the inner core of the electronic configuration. The ionisation enthalpy decreases from top to bottom, but, in the case of, Boron family, there is an increase and decrease in ionisation energies from Al to Tl. Because d and f electrons have a low shielding effect. Electronegativity decreases from B to Al and then it increases this is because of the difference in the atomic size of elements.

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