which is most likely a covalent compound?\no lif\no mgs\no nh₃\no cacl₂

which is most likely a covalent compound?\no lif\no mgs\no nh₃\no cacl₂
Answer
Brief Explanations:
Covalent compounds are formed by sharing of electrons between non - metals. LiF is an ionic compound between a metal (Li) and a non - metal (F). MgS is ionic with a metal (Mg) and non - metal (S). $NH_3$ is formed by sharing of electrons between nitrogen and hydrogen (both non - metals). $CaCl_2$ is ionic with a metal (Ca) and non - metals (Cl).
Answer:
$NH_3$