Now we don't have sure data.
Melting point: possible 30 0C
Boiling point: possible 677 0C
The following data are only estimates, calculated data, not measured values:
Melting point of francium: 22-25 0C.
Boiling point of francium: 660-665 0C.
Not exactly known. The probably melting point of Fr: 27 0C The probably boiling point of Fr: 677 0C
The melting point of francium is not measured, only supposed by comparison with the melting points of the other alkali metals.
No. The melting and boiling points of liquids vary considerably.
Melting and boiling points are different for each compound or element.
lower melting points
chloride isn't a thing on its own and the melting and boiling points of chlorine and magnesium will have no effect on the boiling and melting point og magnesium chloride.
The stronger the intermolecular forces, the higher the melting point and boiling point. The weaker the intermolecular forces, the lower the melting and boiling points are.
Estimated values: - Melting point: 22-25 0C - Boiling point: 660-665 0C
Melting point: the temperature at which a solid become a liquid. Boiling point: the temperature at which a liquid become a gas.
Boiling Point 27.07 K Melting Point 24.56 K
Boiling point 58.78°C Melting point 7.2°C
Melting point 113.5°C Boiling point 184.35°C