Introduction to S block element

Introduction to S Block properties of S block their chemical property and its variation change in halogen of the acid and bases .how they form base and the Order of basicity how the reactivity of basis change.they  Photoelectric effect and this shows variation with properties of Photoelectric effect.

The biological importance aap S block element.

Biological importance of sodium and potassium metal.

The biology of sodium and potassium pump.

The variation of metallic character and how metallic character is effect.

The electronegativity and electropositivity variation.

How electronegativity was changed during the periodic classification.

How electronegativity affect the chemical reactivity.

The electronegativity causes and the reactivity of atom.

The variation of electronegativity large causes change in their atomic and Ionic radius.

And the application of S block element that is is there catalytic properties biological catalytic property enzymatic catalytic property and enzymatic reaction of sodium and potassium.

And certain reaction of S block element