Is Sc 48 stable?
Twenty-five radioisotopes have been characterized, with the most stable being 46Sc with a half-life of 83.8 days, 47Sc with a half-life of 3.35 days, and 48Sc with a half-life of 43.7 hours and 44Sc with a half-life of 3.97 hours.
What is scandium used for?
Scandium is mainly used for research purposes. It has, however, great potential because it has almost as low a density as aluminium and a much higher melting point. An aluminium-scandium alloy has been used in Russian MIG fighter planes, high-end bicycle frames and baseball bats.
What is 21sc?
Scandium is a chemical element with the symbol Sc and atomic number 21. Scandium, 21Sc.
How many isotopes are there of scandium?
In nature, scandium exists in the form of one stable isotope, scandium-45.
What is the most unstable element?
Francium is the most unstable element that occurs naturally. The longest-lived isotope of francium, francium-223 has a half-life of only 22 minutes. There are other synthetic chemical elements that have a half-life lesser than francium-223.
What has the longest half-life?
The half-life of xenon-124 — that is, the average time required for a group of xenon-124 atoms to diminish by half — is about 18 sextillion years (1.8 x 10^22 years), roughly 1 trillion times the current age of the universe. This marks the single longest half-life ever directly measured in a lab, Wittweg added.
Why is scandium so expensive?
Owing to its scarcity and limited production, scandium is one of the most expensive of all the natural elements. Prices for 99.99% pure scandium (RE: 99% min. | Sc/TREM: 99.99% min.) have fluctuated between US$ 4000 and US$ 20,000 per kilogram over the past decade.
What are 3 interesting facts about scandium?
Fun Scandium Facts
- Scandium is a silvery-white relatively light and soft metal at room temperature.
- Scandium is used in alloys much like aluminum.
- Scandium is considered a rare-earth element because it is often found in rare-earth ores.
- Scandium is the 35th most abundant element in the Earth’s crust.
How much does scandium cost?
With a cost of $270 per gram ($122,500 per pound), scandium is too expensive for widespread use.
What are the main isotopes of scandium?
Naturally occurring scandium (Sc) is composed of 1 stable isotope 45Sc. 13 radioisotopes have been characterized with the most stable being 46Sc with a half-life of 83.8 days, 47Sc with a half-life of 3.35 days, and 48Sc with a half-life of 43.7 hours.
What is an interesting fact about scandium?
Scandium is the 31st most abundant element on Earth, according to Periodic Table, with about 22 parts per million abundance by weight in Earth’s crust, according to Chemicool. Scandium is scattered thinly and has been found in over 800 minerals.
What is the rarest element in the world?
Astatine
Astatine is the rarest element on Earth; only approximately 25 grams occur naturally on the planet at any given time. Its existence was predicted in the 1800s, but was finally discovered about 70 years later.
How much scandium is produced in a year?
The world production of scandium is in the order of 15 tonnes per year, in the form of scandium oxide. The demand is about 50% higher, and both the production and demand keep increasing.
What is scandium used for in racing?
In the early 2000’s “Scandium” was the hot frame material for serious racers. Now you have to look at one of the weirdo brands in the dark edges of internet shopping to find one. This article explores why. In Ukrainian uranium mines, workers often pull out a soft, dull grey metal along with the radioactive nuclear bomb fuel they’re looking for.
What is the half life of scandium 45?
In nature, scandium is found exclusively as the isotope 45 Sc, which has a nuclear spin of 7/2; this is its only stable isotope. Twenty-five radioisotopes have been characterized with the most stable being 46 Sc, which has a half-life of 83.8 days; 47 Sc, 3.35 days; the positron emitter 44 Sc, 4 hours; and 48 Sc, 43.7 hours.
Are there any firearms made with scandium?
Lacrosse sticks are also made with scandium. The American firearm manufacturing company Smith & Wesson produces semi-automatic pistols and revolvers with frames of scandium alloy and cylinders of titanium or carbon steel.