The halogen found in seawater is bromine.
The most abundant halogen on Earth is chlorine. It is commonly found in seawater, salt deposits, and as part of various minerals.
Halogen.
Br stands for Bromine on the periodic table of elements. Bromine is a halogen element and is commonly found in salts and seawater. It is a reddish-brown liquid at room temperature.
Iodine.
According to the source I found on the Web: "Of the halogens, fluorine has the highest crustal abundance (544 mg/kg) while iodine has the lowest (0.25 mg/kg), however, chlorine is by far the most abundant halogen in the cosmos." It's fluorine if you're only interested in the Earth's crust, or chlorine if you're interested in the whole solar system or an even wider field than that.
Yes, halite, the mineral form of Sodium Chloride is the most abundant salt found in seawater.
They haven't found a way yet
The elements found in halogen has very rarely been known to cause any type of environmental issues. Because of this, there is very little information about halogen as a pollutant.
Group 17. Also known as the Halogen Family.
There are around three halogens that are found in seawater. These three include bromine, chlorine, and iodine. While the bromine is usually not much, the chlorine is part of its salt content and the iodide contributes to its smell.
Most land vertebrates cannot drink seawater because their bodies are not adapted to process the high levels of salt found in seawater. Drinking seawater can lead to dehydration and damage to their internal organs.