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Atomic number of halogen?
For all practical purposes, there are 4 halogens, and they all have different atomic numbers because they're different elements. They are: fluorine, #9, chlorine, #17, bromine, #35, and iodine, #53. Astatine is in this group as well but you're not likely to ever have to deal with it. The halogens (minus astatine) are very common in chemistry, and it's important to know how they work. When they form ions, their charge is always -1 because they gain 1 electron. The 4 listed above are also diatomic, held together as a pair by a single, non-polar covalent bond. Dispersion forces cause fluorine and chlorine to exist as gases, bromine as a liquid, and iodine as a solid. They react readily with metals to form crystalline solids. Bonded with hydrogen, they form binary acids. They can also replace hydrogen in hydrocarbons to create fluoro-chloro-bromo-carbaons, which are harmful to the environment.
What is iodine an indicator for?
Iodine is an indicator for starch. It turns blue-black in the presence of starch, making it a useful tool for detecting the presence of starchy substances in solutions or biological samples.
What is iodine number?
Iodine number is a measure of the relative unsaturation of a substance, typically a fat or oil. It indicates the amount of iodine in grams that can be absorbed by 100 grams of the substance, with higher numbers indicating a higher degree of unsaturation. This value is useful in determining the quality and stability of fats and oils for various industrial and nutritional applications.
What ways can you use iodine?
Iodine can be used in various ways, including as an antiseptic to disinfect wounds, in thyroid health to prevent iodine deficiency, and in laboratory tests to detect the presence of starch by turning blue-black.
Does chlorine support combustion?
Chlorine gas supports the vigorous combustion of many elements to form their chlorides. For example, Sulphur and Phosphorus burn in the gas.
How does the toxicity of chlorine and iodine make them useful?
They kill bacteria. Tincture of iodine (Na+I3- in H2O) kills bacteria in human wounds. Chlorine kills bacteria is swimming pools, water treatment plants, and campers' water treatment tablets.They're used to disinfect things, i.e., their toxicity to bacteria is something we can take advantage of. Cl is used in bleach, and I is used in surgical disinfectant.
What is iondine solution?
Iodine is a nonmetallic chemical element which is found abundantly in seawater and in some minerals in the earth. It is classified in the halogens, along with elements like chlorine and bromine, and like other elements in this group, iodine is reactive and toxic in large amounts. There are a number of useful applications for iodine, especially in the field of medicine, and the element is also a vital trace element needed for proper human nutrition.
Why is halogen elements not useful?
This question is based on chemistry. Halogens are useful elements. There are 5 halogens in the world.
What are halogens used for?
Fluorine: There are many uses of fluorine such as making refrigerants, detergents, it is even used as a compound in toothpaste. Chlorine: Chlorine as most people know is used to clean pool water. When people go swimming it is not uncommon for them to say it smells of chlorine. The most important use of chlorine is as bleach for manufacturing paper and cloth. Chlorine is one of the most commonly manufactured chemicals. Chlorine is also used for the production of everyday products such insecticides, solvents, food paints, plastic, dyes, textiles, petroleum products, paper products. It is far more widely used than we realise. Bromine: Bromine is a reddish coloured liquid which has a strong odour. It is in liquid form at room temperature and it gives off vapour freely. It is a good decomposer and is used in photography film, fumigants, flame proofing agents, dyes and medicines. Iodine: Iodine is a very important element and has a lot of uses. The compounds are basically used in medicine, photography and dyes. Another very important use of iodine is as it is quite radio opaque, it can be used as a contrast to X-rays. Astatine: Finally the last halogen and the least common one was only discovered recently and as of yet its uses are not known to us because it is not formed naturally like the other halogens are it has to be changed in a laboratory. Of course the obvious answer is that halogens are used in lighting halogen light bulbs.
Atomic number of halogen?
For all practical purposes, there are 4 halogens, and they all have different atomic numbers because they're different elements. They are: fluorine, #9, chlorine, #17, bromine, #35, and iodine, #53. Astatine is in this group as well but you're not likely to ever have to deal with it. The halogens (minus astatine) are very common in chemistry, and it's important to know how they work. When they form ions, their charge is always -1 because they gain 1 electron. The 4 listed above are also diatomic, held together as a pair by a single, non-polar covalent bond. Dispersion forces cause fluorine and chlorine to exist as gases, bromine as a liquid, and iodine as a solid. They react readily with metals to form crystalline solids. Bonded with hydrogen, they form binary acids. They can also replace hydrogen in hydrocarbons to create fluoro-chloro-bromo-carbaons, which are harmful to the environment.
What is the most abundant and useful halogen?
* Fluorine is found on Earth at about 585 mg/kg (crust) 1.3 mg/liter (ocean) * Chlorine is found on Earth at about 145 mg/kg (crust) 19400 mg/liter (ocean) * Bromine is found on Earth at about 2.4 mg/kg (crust) 67.3 mg/liter (ocean) * Iodine is found on Earth at about 0.45 mg/kg (crust) 0.06 mg/liter (ocean) * Astatine is not found on Earth in appreciable quantities (it has no stable isotopes) Earth's crust is about 8.5 * 1020 kg Earth's ocean is about 1.4 * 1018 liters This make fluorine the most abundant halogen *on Earth*, with chlorine 30% as abundant by mass, and 16% as abundant in number of atoms. Fluorine only has one stable isotope, whereas chlorine has two. Otherwise the race would not be even that close.
What is a poisonous but useful element?
chlorine
What are the nutritional benefits of iodine?
Iodine is very useful for our body. Iodine deficiency can cause thyroid. So just check your iodine level in your salt which you are using in your food. Better use Iodine Salt.
Why are halogens used in your daily life?
§ Halogens are a group of non metallic elements that are placed in Group 7 of the Periodic Table. There are 5 elements that are considered to be a part of this group, and that are widely known as halogens. § Halogens are used in our daily life as they are very useful and decrease the chances of being sick or getting disease.
Why might a useful chemical be dangerous?
A chemical can be useful in one context, but dangerous in another due to factors such as toxicity, flammability, or reactivity. For example, while chlorine is used to purify water, it can be harmful if inhaled in its gaseous form. Understanding the potential hazards and using appropriate safety measures is important when handling any chemical.
How is chlorine compound useful?
like in pools, it keeps em clean ;]
What are the things you can do with chlorine that make it useful?
You can use it as a bleach and to sterilize objects.
