A non-metal and a non-metal form covalent bonds.
The elements that make covalent bonds are non-metal and non-metal chemicals
The principal ones are carbon and nitrogen.
covalent bonds
Why does group 4A elements tend to form covalent bonds rather than ionic bonds? 
Rule of thumb answer is covalent bonds form between non metal elements.
The elements carbon and hydrogen both form primarily covalent bonds.
All diatomic elements contain pure covalent bonds because theyre of the same elements.
covalent bonds
This element is carbon.
Elements with intermediate electronegativities, such as carbon and hydrogen.
The nature of the elements in the bond. Elements with a high difference in electronegativity have ionic bonds, elements with a small difference have nonpolar covalent bonds, and elements with no difference (if an atom binds to an atom of the same element) have nonpolar covalent bonds. The more electronegative eleme
Covalent or molecular compounds form when elements share electrons in a covalent bond to create molecules.