What is a covalent bond?what type of substance form covalent bonds?
In a covalent bond, one or more electrons are shared between two atoms. They are formed by nonmetals and metalloids.
A covalent bond is a type of chemical bond that occurs when two atoms share electrons. It is formed when two nonmetal atoms come together and form a molecule by sharing electrons.
To understand which type of substances form covalent bonds, you need to have a basic knowledge of the periodic table. Covalent bonds mainly form between two nonmetal atoms. Nonmetals are located on the right side of the periodic table. Some examples include hydrogen (H), oxygen (O), nitrogen (N), carbon (C), and sulfur (S).
When nonmetal atoms come close to each other, they attract each other's electrons, resulting in the sharing of electrons and the formation of a covalent bond. Unlike ionic bonds, where electrons are transferred from one atom to another, covalent bonds involve the sharing of electrons between atoms. This sharing of electrons allows both atoms to achieve a stable electron configuration, similar to the noble gases, and form a stable molecule.