How do the boiling points of halogens change down the group?

The three common Group 7 elements are chlorine, bromine and iodine. The word 'halogen' means 'salt former'. Apr 12, 2020 ... LEDs appeal to automakers and consumers for several reasons: They're brighter than halogen headlights and often cast a wider pattern, plus they ... Halogen-free tubes are strongly heated or burned, they form much less acids or corrosive gases that are harmful to health. Halogens are highly electronegative with low dissociation energies and high negative electron gain enthalpies. Therefore, they have a high tendency to gain an ... Feb 18, 2019 ... If you read through that thread (it's long, I know) you might get a sense for why one might choose to stay with halogens. A performance halogen ... In summary, while halogens have many useful applications, their high reactivity can lead to significant environmental impacts. These include ozone depletion, ... Mar 7, 2025 ... No, they haven't. There's a little label on the box saying that's it's for reptile use and not for home lighting, but besides that they are ... Why are they so reactive? Halogens are so reactive, because they have 7 valence electrons, and are very close to having a complete shell of 8 electrons. The ... The caloric load values of modern halogen-free cables are reduced by corresponding additives. The specific heating values of the non metallic raw materials for ... Halogens react with metals to produce a range of salts, including calcium fluoride, sodium chloride, silver bromide and potassium iodide.