Elements with intermediate electronegativities, such as carbon and hydrogen.
Covalent bonds usually form between two nonmetals/
4
Rule of thumb answer is covalent bonds form between non metal elements.
H and H
Why does group 4A elements tend to form covalent bonds rather than ionic bonds? 
Covalent bonds usually form between two nonmetals/
Among the elements listed, silicon is most likely to form covalent bonds. (Silicon is in the same periodic table column as carbon, which is the most likely of all atoms to form covalent bonds.)
4
Rule of thumb answer is covalent bonds form between non metal elements.
H and H
Why does group 4A elements tend to form covalent bonds rather than ionic bonds? 
covalent bonds
A non-metal and a non-metal form covalent bonds.
The elements carbon and hydrogen both form primarily covalent bonds.
Covalent or molecular compounds form when elements share electrons in a covalent bond to create molecules.
no, sodium is a metal and metals don't form covalent bonds
This element is carbon.