What has 53 protons and 74 neutrons?
iodine
What is the period for iodine?
5
Is Iodine an atom or ion?
I (iodine) atoms (atomic number 53) have 53 protons and 53 electrons. I– (iodide) ions have 53 protons and 54 electrons. The composition of the nucleus for both cations and anions is the same as the corresponding atom. Thus the number of protons and neutrons is the same.
Why iodine is violet in Colour?
Iodine vapours are violet in colour because the molecules of iodine in vapour phase absorb green and yellow radiation and then emit violet colour. Because violet colour is complementary colour to green and yellow colour on the colour wheel.
What is the most common ion of iodine?
iodide ion
What is the chemical name for iodine?
Iodine is a chemical element with the symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a lustrous, purple-black non-metallic solid at standard conditions that melts to form a deep violet liquid at 114 degrees Celsius, and boils to a violet gas at 184 degrees Celsius.
What is the pH of iodine?
| pH | % of Active Iodine Specie (I2 and HIO)* | % of Active Chlorine Specie (HOCl)** |
|---|---|---|
| 7 | 94.2 – 98.3 | 75.2 |
| 7.5 | 92.0 – 92.2 | 48.0 |
| 8 | 78.9 – 78.3 | 23.2 |
| 8.5 | 58.2 – 57.6 | 9.0 |
Is Iodine a hazard?
Higher exposures may cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency, with severe shortness of breath. ► Iodine can cause headache, metallic taste, nausea, vomiting, diarrhea and abdominal pain.
What I2 called?
Iodine | I2 – PubChem.
Is i2 solid or aqueous?
It is only at temperatures between -7 °C and 59 °C that fluorine and chlorine are gases, bromine is a solid, and iodine is a solid….Is i2 aqueous?
| Iodine | |
|---|---|
| Boiling point | (I2) 457.4 K ?(184.3 °C, ?363.7 °F) |
| Density (near r.t. ) | 4.933 g/cm3 |
Why is iodine Brown in water?
Iodine is non-polar and thus dissolves in methylene chloride by dispersion forces (induced dipole/induced dipole). A small amount of iodine may dissolve in the water initially due to dipole/induced-dipole interactions producing a slight brown color.
Is Iodine a gas?
Under standard conditions iodine is a dark blue-black solid. As a gas, iodine is a purple vapor. Iodine is a fairly active element, but is somewhat less active than the other halogens above it in the periodic table which include bromine, chlorine, and fluorine. Iodine can form compounds with many elements.
Is iodine becoming a gas a chemical property?
Th density of iodine is 4.94 g/mL, which means it will sink in water. Chemical Properties: The reaction is so exothermic that part of the iodine element solid is vaporized to iodine violet gas.