Is methane (ch4) a covalent or ionic bond? give reasons and explain why is it so.

Covalent.

Ionic Bond = Two atoms at which one of them are positive, one of them are negative. Whoever is more reactive will steal the electron and keep it, and they will form a bond. Most likely will be a metal ion (+Ve) and a non-metal ion (-ve).

Covalent = Non-metal bond to non-metal. They share electrons.

Although Hydrogen is positively charged, they are "technically" sharing electron, hence is covalent

I believe methane has a covalent bond because electrons in this compound is being shared. Carbon atoms create 4 covalent bonds to form organic compounds. Carbon atoms can share electrons or form covalent bonds with other atoms in this case with hydrogen. 

You know how the first one if filled up like the objects do the same but with the other categories