So we have nitrogen and phosphorus, which is a nonmetal or both nonmetals. We have arsenic and antimony, which are both metalloids, and bismuth, which is a metal. Now once again, just like group 14 or four A, we have at least one of each in our group 15 or five day. Now, unlike this group which forms four Covalent bonds with other nonmetals, group 15 or five day forms three Covalent bonds and in addition, every single atom, except that nitrogen can form two more bonds using their higher D orbitals. Now we're going to talk more about D orbitals and P orbitals and S orbitals in another lecture. Let's look at C. Now nitrogen, this atom can form pi bonds just like carbon can form pi bonds in group 14.