Ytterbium in a sentence

The chemical and physical properties of ytterbium could not be determined with any precision until 1953, when the first nearly pure ytterbium metal was produced by using ion-exchange processes.

The primary decay products of ytterbium isotopes lighter than 174 Yb are thulium isotopes, and the primary decay products of ytterbium isotopes with heavier than 174 Yb are lutetium isotopes.

The world production of ytterbium is only about 50 tonnes per year, reflecting the fact that ytterbium has few commercial applications.

Characteristics Physical properties Ytterbium is a soft, malleable and ductile chemical element that displays a bright silvery luster when in its pure form.

Chemical properties Ytterbium metal tarnishes slowly in air.

Chemistry experiments have confirmed that nobelium behaves as a heavier homolog to ytterbium in the periodic table.

Erbium and ytterbium ions are common active species in such lasers.

Europium and ytterbium form salt-like monoxides, EuO and YbO, which have a rock salt structure.

Finely dispersed ytterbium readily oxidizes in air and under oxygen.

Greenwood & Earnshaw, p. 27 The electrons in the 4f-subshell, which is progressively filled from cerium (element 58) to ytterbium (element 70), are not particularly effective at shielding the increasing nuclear charge from the sub-shells further out.

However, Ytterbium doped fibre lasers and amplifiers, operating near 1 micrometre wavelength, have many applications in industrial processing of materials, as these devices can be made with extremely high output power (tens of kilowatts).

In order to achieve even higher power levels in ytterbium-based fiber systems all factors of the fiber must be considered.

Isotopes lighter than the stable lutetium-175 decay via electron capture (to produce isotopes of ytterbium ), with some alpha and positron emission ; the heavier isotopes decay primarily via beta decay, producing hafnium isotopes.

Marignac suspected that ytterbia was a compound of a new element that he called "ytterbium".

Once extracted and prepared, ytterbium is somewhat hazardous as an eye and skin irritant.

Others Ytterbium metal increases its electrical resistivity when subjected to high stresses.

The lanthanides and actinides, in the metallic state, can exist as either divalent (such as europium and ytterbium ) or trivalent (most other lanthanides) metals.

The office also asked to avoid discussion of "polonium, uranium, ytterbium, hafnium, protactinium, radium, rhenium, thorium, deuterium"; only uranium was sensitive, but was listed with other elements to hide its importance.

The other heavier lanthanides – terbium, dysprosium, holmium, erbium, thulium, and ytterbium – become ferromagnetic at much lower temperatures.

The primary decay products before 169 Tm are element 68 ( erbium ) isotopes, and the primary products after are element 70 ( ytterbium ) isotopes.