It s a solid, and it melts at 700 C and boils at 1140 C. Radium was discovered by Marie and Pierre Curie in 1898.
(it; melts; T:at 700 C) (it; boils; L:at 1140 C. Radium)
it it
melts boils
T:at 700 C
L:at 1140 C. Radium