posted by liz .
what is transition metal number 24
a common solid halogen
family 13 bears this name
transition metal 24 is Cr (chromium?)
the halogens are fluorine, chlorine, bromine, Iodine, and astatine. I don't know which one is a common solid though
F2 is a gas.
Cl2 is a gas.
Br2 is a liquid.
I2 is a solid.
At (astatine) is not a common halogen.