Answer:
Ionic
Step-by-step explanation:
Magnesium hydroxide is an ionic compound and its formula is Mg(OH)2. An ionic bond is formed between two atoms when one is electron deficient and the other one is electron sufficient.
Here, Mg2+ is positively charged while OH- is negatively charged. Being oppositely charged strong ionic bonds are formed between these two elements.
An ionic molecule has high boiling and melting point and is stronger than molecules formed by covalent bonds.