hydrogen, oxygen, fluorine, bromine, iodine, nitrogen, and chlorine are all nonmetals. nonmetals form covalent bonds.
Rule of thumb answer is covalent bonds form between non metal elements.
Why does group 4A elements tend to form covalent bonds rather than ionic bonds? 
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.
Rule of thumb answer is covalent bonds form between non metal elements.
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.
Elements with intermediate electronegativities, such as carbon and hydrogen.
This element is carbon.
Group-14 elements share electrons. they form covalent bonds.
Covalent bonds usually form between two nonmetals/
Covalent bonds are between nonmetals.
Nonmetals form covalent bonds.