What is the density of iodine?
4.93 g.cm-3
Chemical properties of iodine – Health effects of iodine – Environmental effects of iodine
| Atomic number | 53 |
|---|---|
| Density | 4.93 g.cm-3 at 20°C |
| Melting point | 114 °C |
| Boiling point | 184 °C |
| Vanderwaals radius | 0.177 nm |
Is iodine solid or aqueous?
Iodine is a nonmetallic, nearly black solid at room temperature and has a glittering crystalline appearance. The molecular lattice contains discrete diatomic molecules, which are also present in the molten and the gaseous states. Above 700 °C (1,300 °F), dissociation into iodine atoms becomes appreciable.
How do you find the density of iodine?
Density of Iodine is 4.94g/cm3. In words, the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance.
What is the molecular weight of iodine?
126.90447 u
Iodine/Atomic mass
Is iodine dull or shiny?
Uses and properties A black, shiny, crystalline solid. When heated, iodine sublimes to form a purple vapour.
Why is iodine called iodine?
Iodine gets its name from the Greek word “iodes” which means “violet.” Iodine has one stable isotope that occurs naturally, iodine-127. Many people get the iodine they need in their diets from eating seaweed.
How can I tell if I am allergic to iodine?
Symptoms
- itchy rash that comes on slowly (contact dermatitis)
- hives (urticaria)
- anaphylaxis, which is a sudden allergic reaction that can cause hives, swelling of your tongue and throat, and shortness of breath.
Can iodine melt?
But solid iodine does have a melting point, if the flask is heated to 113.7 ∘C, the bottom of the flask contains liquid iodine.
Where is iodine most commonly found?
Fish (such as cod and tuna), seaweed, shrimp, and other seafood, which are generally rich in iodine. Dairy products (such as milk, yogurt, and cheese), which are major sources of iodine in American diets. Iodized salt, which is readily available in the United States and many other countries*
What is iodine Colour?
Iodine is a purple in a hydrocarbon solvent and yellowish-brown in water. The colour of iodine solution depends upon the nature of the solvent. Iodide ions are colourless, for example a solution of sodium iodide is colourless, and this solution will only be coloured if the positive ion were to be coloured.
Is iodine solution acidic or basic?
Iodine is neither an acid NOR a base…..
Why is iodine an anion?
On the other hand, iodine is located in group 17 (main group 7), which means it has 7 valence electrons. It is easier for iodine to gain an electron rather than to lose 7, so it will form an anion, or negatively charged ion, I− .