Given the following list of elements: fluorine, iron, bromine, and mercury, which of the following statements is true? (Room temp in the Kelvin scale is 295 K)
a: iron is considered a solid because its freezing point is above room temp
b: bromine and mercury are both liquids at room temp because their boiling points are below room temp
c: fluorine is a gas because its melting point is above room temp
d: all of the above are true
e: none of the above are true
I chose e but was told a is correct. Why is a correct?