In case of sing e bond, there is only one $\sigma$-bond, in case of double bond, theie is one a and one $\pi$-bonds while in case of triple bond, there is one a and two $\pi$-bonds. Thus angular shape of ozone $(O_3)$ contains $2\sigma $ and $1^{-1} $ one r s
P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.