Lutetium-176 is a relatively abundant (2.5%) radioactive isotope with a half-life of about 38 billion years, usedto determine the age of minerals and meteorites. Lutetium usually occurs in association with the element yttrium and is sometimes used in metal alloys and as a catalyst in various ...
YBYang Berhormat(Malay: The Honorable) YBYtterbium YBYoung Blood YBYoung Bull YBYorkshire Bank(UK) YBYottabyte(10 E^24, one septillion bytes) YBYellow Belt(Lean Six Sigma training) YBYoung Buck(rapper) YBYogi Bear(cartoon character)
The atomic number of tellurium is 52, and the element is identified with the symbol Te on the periodic table of elements. In glassmaking, tellurium may be added to glass for color. The element is also added to metal alloys to make them stronger and more ductile, and it is used in the...
Yttrium may be the element with the most oddly-spelled name, but it's very useful. In this lesson, you'll find out about all the things you use everyday that rely on yttrium. What is Yttrium (and How to Pronounce It!) Yttrium (IT-ree-em), is a rare earth element. This means ...
The story of dysprosium begins with a chemist namedJohan Gadolinin 1794. Gadolin was analyzing a mineral from a small town on an island off the coast of Sweden called Ytterby. Gadolin realized the mineral had a new element in it, which he called yttrium. Now, his sample of yttrium was im...
Ionization energyincreases across a row on the periodic maximum for the noble gases which have closed shells. For example, sodium requires only 496 kJ/mol or 5.14 eV/atom to ionize it. On the other hand, neon, the noble gas, immediately preceding it in the periodic table, requires 2081 kJ...
This is not a trivial matter. Arguments still rage, for example, over whether the elements below yttrium in group 3 should be lanthanum and actinium, or lutetium and lawrencium. The dispute comes down to whether you think the table should reflect ‘fundamental’ characteristics such as electroni...
Yttrium These elements are known as lanthanides. Despite their “rare” designation, they’re not as rare as their name suggests. They’re found in abundance across the world with the most concentrations found in China who is the leading producer of REMs. Millions of years ago, they formed ...
The measurement of this energy is the basis of XRF analysis. thermofisher.com/xrf 6 The periodic table Number of protons = atomic number (different for each element) Number of electrons typically = number of protons (so the atom is Number neutral) of neutrons is variable and is what allows...
Among the materials, rare earths (REs) have become critical and important. Rare earths (REs) refer to the 15 metallic elements of the lanthanide series, coupled with the chemically similar yttrium, and occasionally scandium [1]. Typically, REs are divided into two categories according to the ...