How does the number of outer energy level electrons relate to the properties of elements?

Elements whose atoms have the same number of outer electrons have similar properties.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

its temperature is increasing. this causes molecular vibrations to increase.