Definition of Caesium. Meaning of Caesium. Synonyms of Caesium
Here you will find one or more explanations in English for the word Caesium. Also in the bottom left of the page several parts of wikipedia pages related to the word Caesium and, of course, Caesium synonyms and on the right images related to the word Caesium.
Definition of Caesium
Caesium C[ae]"si*um, n. [NL., from L. caesius bluish gray.]
A rare alkaline metal found in mineral water; -- so called
from the two characteristic blue lines in its spectrum. It
was the first element discovered by spectrum analysis, and is
the most strongly basic and electro-positive substance known.
Symbol Cs. Atomic weight 132.6.
Meaning of Caesium from wikipedia
(IUPAC spelling) (also spelled cesium
English) is a chemical element
with the symbol Cs and atomic
number 55. It is a soft, silvery-golden...
-137 (137 55Cs ), or radiocaesium, is a radioactive isotope
of caesium which
as one of the more common fission products
by the nuclear...
(55Cs) has 40 known
and mercury, one of the elements
with the most isotopes. The atomic
m****es of these...
- and atomic
number 87. Prior
to its discovery, it was referred
to as eka-caesium
. It is extremely
radioactive; its most stable
isotope, francium-223 (originally...
- concept. The first accurate atomic
clock, a caesium standard based
on a certain transition
of the caesium
-133 atom, was built
by Louis Essen
- Caesium chloride
or cesium chloride
is the inorganic compound
with the formula
CsCl. This colorless solid
is an important source
ions in a...
- Caesium fluoride
or cesium fluoride
is an inorganic compound usually encountered
as a hygroscopic white
solid. It is used in organic synthesis
as a source...
- chemical elements lithium
(Na), pot****ium (K), rubidium
(Cs), and francium
they comprise group
- The caesium standard
is a primary frequency standard
the photon absorption
by transitions between
the two hyperfine ground states
- fixed numerical value
of the caesium frequency
∆νCs, the unperturbed
ground-state hyperfine transition frequency
of the caesium
133 atom, to be 9192631770...
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