A more reactive halogen will displace a less reactive halogen from a solution of its salt. Which equation is correct? bromine + potassium iodide → potassium bromide + iodine

chlorine + potassium iodide → potassium iodine + chlorine

chlorine + potassium bromide → Bromine chloride + potassium

elements make up everything, and they combine to make compounds.

the answer is c

i believe the answer is true.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

i think it's letter a.