You are watching: Which of the following are characteristics of halogens
What elements are halogens?The halogens incorporate the five facets fluorine, chlorine, bromine, iodine, and also astatine. They comprise column 17 of the regular table.What space the similar properties of halogens?Halogens re-superstructure many comparable properties including:They all type acids when merged with hydrogen.They space all reasonably toxic.They readily integrate with metals to form salts.They have seven valence electrons in their external shell.They are very reactive and electronegative.They every exist as diatomic molecules (two atoms) once in your pure form.Phases Under standard ConditionsUnder typical conditions, the halogens exist in every three main phases the matter: Iodine and astatine space solids; bromine is a liquid; and fluorine and also chlorine space gases. The only other aspect to it is in a liquid at room temperature is mercury.
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Order of AbundanceAll of the halogens can be discovered in the Earth"s crust. Fluorine and also chlorine are fairly abundant with iodine and bromine being somewhat rare. Astatine is extremely rare and also is thought about one of the rarest naturally occurring elements on Earth.Here is the order of abundance in the Earth"s crust:FluorineChlorineBromineIodineAstatine
Interesting Facts about HalogensThe name halogen originates from the Greek words "hals", definition "salt", and also "gen", an interpretation "to make."Fluorine is considered one that the most reactive aspects in existence.Simple compounds that contain halogens are referred to as halides.Fluorine gas is deadly. Breath air with only a small concentration the 0.1% fluorine can cause death.Small amounts of fluoride are used in water and also toothpaste to aid prevent this decay.The very first halogen to it is in isolated and also recognized as an element was chlorine.Astatine has found uses in medicine even though that is radioactive and also decays quickly. Bromine fluid evaporates easily at room temperatures emitting an orange vapor.Bromine has actually a very strong and bad odor. It it s okay its name from the Greek native "bromos" which way "stench."Despite the truth that fluorine and also chlorine space poisonous, tiny amounts are important to human health and also life. Iodine is also needed for person health.More on the Elements and also the regular TableElementsPeriodic Table
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