Decayed - Law Dictionary Search Results
Home Dictionary Name: decayedDecay
To pass gradually from a sound prosperous or perfect state to one of imperfection adversity or dissolution to waste away to decline to fail to become weak corrupt or disintegrated to rot to perish as a tree decays fortunes decay hopes decay...
Decayed
Fallen as to physical or social condition affected with decay rotten as decayed vegetation or vegetables a decayed fortune or gentleman...
decayable
susceptible to decay...
Decayer
A causer of decay...
Half life
the time it takes for one half of a substance decaying in a first order reaction to be destroyed For radioactive substances it is the time required for one half of the initial amount of the radioactive isotope to decay The half lifeis a measure of the rate of the reaction being observed For processes that are true first order processes such as radioactive decay the half life is independent of the quantity of material present and it is thus a constant The time it takes for one half the remaining quantity of a radioactive isotope to decay will be the same regardless of how far the decay process has advanced Some chemical reactions are also first order and may be characterized as having a half life However for chemical reactions the half life will depend upon temperature and in some cases other environmental conditions whereas for radioactive isotopes the rate of decay is largely independent of the environment...
Mesothorium
a radioactive isotope of radium radium 228 with a half life of 58 years Also called mesothorium 1 or mesothorium I to distinguish it from a subsequent decay product mesothorium II actinium 228 It was discovered in 1907 by Otto Hahn as a decay product of thorium produced by decay of thorium 232 Mesothorium 1 radium 228 in turn produces actinium 228 mesothorium 2 as the first product of its radioactive decay and the actinium 228 in turn decays quickly half life of 6 hours to thorium 228 which is also called radiothorium the thorium 228 has a half life of 191 years shorter than that of the radium 228 It was discovered and named before full recognition of the nature of isotopes of the elements and was distinguished from other variants of radium by its half life and mode of production and decay It was also cheaper to prepare than other short lived radium isotopes and was thus sold commercially for use eg in making watch dials readable in the dark by painting the hands and hour marks with a ...
Radon
An intensely radioactive gaseous element produced by the radioactive decay of radium 226 which is the main isotope of radium found in pitchblende Chemically it is an inert noble gas Its atomic symbol is Rn It has an atomic number of 86 The radon isotope produced by decay of radium has an atomic weight of 222017 and this isotope decays by alpha emission with a half life of 382 days Numerous other isotopes have been observed all radioactive and all having half lives shorter than that of radon 222 Radon was discovered by M and Mme Curie of Paris in their studies of the radioactive substances in pitchblende Radon was originally called radium emanation or exradio...
First order
decaying at an exponential rate a mathematical concept applied to various types of decay such as radioactivity and chemical reactions...
radiothorium
an earlier name for the thorium isotope thorium 228 given by its discoverer Otto Hahn It is a radioactive substance formed as one of series of products in the chain of radioactive decay of thorium Its immediate predecessor in the chain is Actinium 228 and it decays by alpha emission to radium 224 with a half life of 191 years The name radiothorium was given prior to the full understanding of the nature of isotopes of elements...
Dilapidation
Dilapidation, decay; a kind of ecclesiastical waste, either voluntary, by pulling down, or permissive, by suffering the chancel, parsonage house, and other buildings thereunto belonging to decay. See the (English) Ecclesiastical Dilapidations Act, 1871 and 1872 (34 & 35 Vict. c. 43, and 35 & 36 Vict. c. 96), Chitty's Statutes, tit. 'Church and Clergy.'The term is also used to signify that disrepair for which a tenant is usually liable to a landlord during and at the end of a tenancy under an express agreement to keep and yield up the demised premises in good repair; see Lister v. Lane, (1893) 2 QB 212; Torrents v. Walker, (1906) 2 Ch 166; Anstruther-Gough-Calthorpe v. McOscar, (1924) 1 KB 716 (CA), also FORFEITURE, and Landlord and Tenant Housing Act....
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