C. Noble fumes will be the non reacting elements
with regards to halogens: becoming nonmetals, they might be bad conductors of electrical energy as well as heat.
becoming halogens they might be reactive
F and Cl tend to be fumes Br is fluid and I also as well as tend to be solids, it can follow a design.
Sun and rain which do not normally form substances tend to be- noble fumes( obtained entirely filled valence subshells-ie 8 electrons)
Which home of bromine can you never predict on the basis of the undeniable fact that its a nonmetal when you look at the halogen household?
fluid at room-temperature
Noble fumes tend to be INERT in the wild. They don’t develop substances under regular problems because their particular outermost layer is full.
All of the halogens tend to be fumes, but bromine is fluid. Hence the clear answer.
Very first concern: c