I'm doing the same poject. The normal phase is- solid the family is the boron family and the cost is $5 per gram.
What Is The "Normal Phase" Of A Boron?
Boron is a chemical element, that is never found in a free state. It is a non-metal and its normal phase is its occurence as a solid allotrope.
I don't know the answer, BUT I HAVE THE SAME PROJECT. Is that not cool ?
I think it is is 0 degrees