Iodine Element Number 53 I

Iodine is a Halogen element, Iodine meaning "violet" has a beautiful violet gas vapor. The crystalline solid of Iodine is a blueish black solid, It feels greasy to the touch and leaves a classic Iodine odor, stronger than drug store tinctures. When set onto a piece of white paper these crystals will leave stains.

Iodine is very important to human health. Iodine deficiency can lead to thyroid issues and learning development issues in children. Iodine deficient children have improved learning ability when Iodine is increased. Iodine, and all radio isotopes of Iodine, will accumulate in the thyroid gland. Iodine123 with a 13 hour half life is used  in radio imaging of the thyroid.

 Nuclear fission product  Iodine 131 can cause cancer in the thyroid, in low doses this isotope is more dangerous than high doses, as high doses destroy the tissues it could otherwise cause cancer. Potassium Iodide is a common compound taken to prevent radiation poisoning, this function is achieved by saturation of the thyroid to prevent further uptake of iodine, thus blocking the radioactive  isotopes.

Iodine is found in certain gas fields and also sedimentary Calcium Carbonate in Chile. In the good old days sea kelp was processed to obtain Iodine, but these days the Iodine is removed from brine of gas fields, or Sodium Nitrates of mines in Chile.

Iodine has many compounds and bonds with all elements except the noble gasses. Some uses are, water purification, antiseptic, exotic metal purification, catalyst for the manufacture of acetic acid, and cloud seeding, to name a few.

I am revamping my personal lab, and once complete I plan to conduct many element experiments, including photos of  Iodine colors when dissolved in various solvents.

These photos show pure Iodine crystals vaporized into a beautiful  violet gas,  and also the crystals that formed around the glass vent nipple on the lab ware.

Pure Iodine crystals.

I 53  AW:127.60  D:6.24  MP:841.12   BP:1810  Mohs:2.25 

Xenon Element Number 54 Xe 

 Photos of A Xenon flash tube, and also pressurized Xenon, which liquefies in a refrigerator, when warmed to room temperature the liquid will boil back into gas. The photo shows a vial sealed in arcylic of  Xenon boiling at room temperature, I adjusted the photo to get  best detail of the liquid.

Xe 54  AW:131.293  D@BP3.05   MP:-169.1  BP:-162.62 

Xenon gas is one of the elements that can be referred to as "Neon" when talking about signs. Neon signs are made with 5 different gasses, and Xenon is the gas that produces blue color. When Xenon is in a sealed vacuum and excited with high voltage the gas will glow with its spectral color.

Xenon is a noble gas, meaning the element is inert. Xenon gas is derived from the atmosphere in a process called fractional distillation. Neon and Krypton are also derived this way. Xenon gas is created in red giant supernova, in slow process (s-process). Xenon is also a product of fission of other elements such as Uranium and plutonium. Xenon is a very rare gas.

Xenon has the second most stable isotopes on the periodic table, with 9 stable isotopes. Tin holds top slot with 10 stable isotopes. Xenon also has 40 or so unstable isotopes. Xe129 is a decay product of Iodine129. Xenon 133 and 135 are products of nuclear reactors. Xe135 can be used as a neutron absorber in a reactor, the material is so efficient it can be used to shut down reactors.

Although Xenon is a noble metal, Xenon is not 100% inert, as it has been discovered the gas will compound with Fluorine, Oxygen and Carbon. An odd ion of Xenon and Gold exists and is odd because both Gold and Xenon are quite nonreactive.

Xenon is used in a handful of applications such as lasers, light bulbs, MRI and photon emission tomography, (gamma radiation emission). One odd use for Xenon is an anesthesia similar to Nitrous Oxide. Xenon can be used in ion engines for space craft.