| slovo | definícia |
rutherford
(encz) | Rutherford,Rutherford n: [jmén.] příjmení, okres v USA Zdeněk Brož a
automatický překlad |
rutherford
(czen) | Rutherford,Rutherfordn: [jmén.] příjmení, okres v USA Zdeněk Brož a
automatický překlad |
rutherford
(wn) | rutherford
n 1: a unit strength of a radioactive source equal to one
million disintegrations per second
2: British chemist who isolated nitrogen (1749-1819) [syn:
Rutherford, Daniel Rutherford]
3: British physicist (born in New Zealand) who discovered the
atomic nucleus and proposed a nuclear model of the atom
(1871-1937) [syn: Rutherford, Ernest Rutherford, {First
Baron Rutherford}, First Baron Rutherford of Nelson] |
| | podobné slovo | definícia |
rutherfordium
(encz) | rutherfordium, |
rutherfordium
(gcide) | kurchatovium \kurchatovium\ n. [From Igor Kurchatov, a Russian
scientist who worked on the atomic bomb.]
A transuranic element of atomic number 104, symbol Ku; also
called rutherfordium, symbol Rf. It is produced in very
small quantities by nuclear reactions. In November 1993 the
nomenclature committe of the American Chemical Society
approved the name rutherfordium for element 104. Russsian
investigators who claim to have first discovered element 104,
isotope 260 (half-life 0.3 seconds) in 1964 at Dubna proposed
the name kurchatovium. However, investigators at Berkely in
1969 produced several isotopes of element 104 but were unable
to produce isotope 260; they reported finding isotope 257,
with a half-life of 4-5 seconds, isotope 259 with a half-life
of 3-4 seconds, and isotope 258 with a shorter half-life.
Syn: rutherfordium, Rf, Ku, unnilquadium, Unq, element 104,
atomic number 104.
[WordNet 1.5 +PJC] kurchee |
daniel rutherford
(wn) | Daniel Rutherford
n 1: British chemist who isolated nitrogen (1749-1819) [syn:
Rutherford, Daniel Rutherford] |
ernest rutherford
(wn) | Ernest Rutherford
n 1: British physicist (born in New Zealand) who discovered the
atomic nucleus and proposed a nuclear model of the atom
(1871-1937) [syn: Rutherford, Ernest Rutherford, {First
Baron Rutherford}, First Baron Rutherford of Nelson] |
first baron rutherford
(wn) | First Baron Rutherford
n 1: British physicist (born in New Zealand) who discovered the
atomic nucleus and proposed a nuclear model of the atom
(1871-1937) [syn: Rutherford, Ernest Rutherford, {First
Baron Rutherford}, First Baron Rutherford of Nelson] |
first baron rutherford of nelson
(wn) | First Baron Rutherford of Nelson
n 1: British physicist (born in New Zealand) who discovered the
atomic nucleus and proposed a nuclear model of the atom
(1871-1937) [syn: Rutherford, Ernest Rutherford, {First
Baron Rutherford}, First Baron Rutherford of Nelson] |
rutherford atom
(wn) | Rutherford atom
n 1: first modern concept of atomic structure; all of the
positive charge and most of the mass of the atom are
contained in a compact nucleus; a number of electrons
(equal to the atomic number) occupy the rest of the volume
of the atom and neutralize the positive charge |
rutherford b. hayes
(wn) | Rutherford B. Hayes
n 1: 19th President of the United States; his administration
removed federal troops from the South and so ended the
Reconstruction Period (1822-1893) [syn: Hayes,
Rutherford B. Hayes, Rutherford Birchard Hayes,
President Hayes] |
rutherford birchard hayes
(wn) | Rutherford Birchard Hayes
n 1: 19th President of the United States; his administration
removed federal troops from the South and so ended the
Reconstruction Period (1822-1893) [syn: Hayes,
Rutherford B. Hayes, Rutherford Birchard Hayes,
President Hayes] |
rutherfordium
(wn) | rutherfordium
n 1: a radioactive transuranic element which has been
synthesized [syn: rutherfordium, Rf, unnilquadium,
Unq, element 104, atomic number 104] |
rutherfordium
(elements) | rutherfordium
Symbol: Rf
Competing name for unnilquadium, the 104th element, proposed by the
American Chemical Society. Also competing name for unnilhexium
the 106th element, proposed by the IUPAC. Finally in 1997 the IUPAC
decided to use Rutherfordium as the official name of the 104th element.
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