{i} family name; Marie Curie (1867-1934), Polish physicist and chemist, co-discoverer of radium, Nobel prize winner; Pierre Curie (1857-1906), French physicist and chemist, co-discoverer of radium, Nobel prize winner (husband of Marie)
The basic unit used to describe the intensity of radioactivity in a sample of material The curie is equal to 37 billion (3 7X1010) disintegrations per second, which is approximately the activity of 1 gram of radium A curie is also a quantity of any radionuclide that decays at a rate of 37 billion disintegrations per second It is named for Marie and Pierre Curie, who discovered radium in 1898
A unit of radioactivity One curie is defined as 3 7 x 1010 (37 billion) disintegrations per second Several fractions and multiples of the curie are commonly used
A unit of radioactivity One curie equals that quantity of radioactive material in which there are 3 7 x 1010 nuclear transformations per second (1 Ci = 3 7 x 1010 disintegrations per second = 3 7 x 1010 Bq) The activity of 1 gram of radium is approximately 1 Ci
A standard measure of the rate of nuclear transformations, or disintegrations equal to that of one gram of radium This rate is 3 70 × 1010 disintegrations per second
a measure of the rate of radioactive decay; 1 curie is a large amount of radioactivity, equal to 37 billion radioactive disintegrations per second (the radioactivity of one gram of radium)
The original unit used to describe the intensity of radioactivity in a sample of material One curie equals thirty-seven billion disintegrations per second, or approximately the radioactivity of one gram of radium This unit is no longer recognized as part of the International System of units It has been replaced by the becquerel
A unit of radioactivity that represents the amount of radioactivity associated with one gram of radium To say that a sample of radioactive material exhibits one curie of radioactivity means that the element is emitting radiation at the rate of 3 7 million times a second Named after Marie Curie, an early nuclear scientist
a measurement of radioactivity: the amount of radioactive material giving off 3 7 x 1010 d p s , or 37 billion disintegrations per second In the United States, the picocurie (1 pCi = 0 037 d p s or 1 x 10-12 of a curie) is the unit used for many measurements of radioactive contamination
The unit used to describe the intensity of radioactivity in a sample of material The curie is equal to 37 billion (3 7 x 1010) disintegrations per second, which is approximately the activity of 1 gram of radium The Becquerel (Bq) has replaced the Ci in the SI system The Becquerel (Bq) is 1 disintegration per second
Former unit used for measuring radioactivity, officially replaced in 1985 by the becquerel (Bq) 1 curie equals the activity of 1 gramme of radium and equals 37 billion Bq
A unit of radioactivity; it is the activity of a quantity of any radioactive species in which 3 700 × 1010 nuclear disintegrations occur per second The gamma curie is sometimes defined correspondingly as the activity of material in which this number of gamma-ray photons are emitted per second
Another unit to describe the activity of a sample of material One curie equals thirty-seven billion disintegrations per second, or approximately the radioactivity of one gram of radium It has been taken over by the Becquerel in the SI scheme
A unit used to measure the rate of radioactive decay One curie equals 37 billion disintegrations per second, or approximately the radioactivity of one gram of radium
The basic unit used to describe the radioactivity in any material The radioactivity of one gram of radium is a curie It is named for Pierre and Marie Curie, pioneers in radioactivity and discoverers of the elements radium, radon, and polonium
French chemist (born in Poland) who won two Nobel Prizes; one (with her husband and Henri Becquerel) for research on radioactivity and another for her discovery of radium and polonium (1867-1934) French physicist; husband of Marie Curie (1859-1906) a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second
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