Seven substances, P to V, have the following properties.
P: melting point -101 C, boiling point -35 C, does not conduct as a solid, does not conduct when molten.
Q: melting point 113 C, boiling point 445 C, does not conduct as a solid, does not conduct when molten.
R: melting point -39 C, boiling point 357 C, conducts as a solid, conducts when molten.
S: melting point 1085 C, boiling point 2562 C, conducts as a solid, conducts when molten.
T: melting point 801 C, boiling point 1413 C, does not conduct as a solid, conducts when molten.
U: melting point 3550 C, boiling point 4827 C, does not conduct as a solid, does not conduct when molten.
V: melting point 5.5 C, boiling point 80 C, does not conduct as a solid, does not conduct when molten.