State likely physical property of the compound formed between magnesium and flourine

The compound formed between magnesium and fluorine is magnesium fluoride (MgF2). Here are some likely physical properties of this compound:

1. Appearance: Magnesium fluoride is a white crystalline solid.

2. Solubility: It is slightly soluble in water. This means that only a small amount of magnesium fluoride will dissolve in water.

3. Melting and Boiling Points: Magnesium fluoride has high melting and boiling points. This is because it is an ionic compound and these have strong electrostatic forces of attraction between their positive and negative ions which require a lot of energy to overcome. The melting point is 1263 °C and the boiling point is 2260 °C.

4. Hardness: As an ionic compound, magnesium fluoride is also likely to be quite hard due to the strong attractions between the ions.

5. Conductivity: Magnesium fluoride does not conduct electricity in solid state but it does when it is melted. Ionic compounds like magnesium fluoride can only conduct electricity if their ions are free to move.

6. Density: It has a density of 3.18 g/cm³.

Remember, these are general properties and can vary under different conditions.