Radium - Law Dictionary Search Results
Radium
Matched in: Term Radium
Mesothorium
a radioactive isotope of radium radium 228 with a half life of 58 years Also called mesothorium 1 or mesothorium I to distinguish
Polonium
A radioactive chemical element discovered by M and MMe Curie in pitchblende and originally called radium F It has atomic number 84 and an atomic weight of 210 It is a very rare natural
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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
Beta rays
a form of ionizing radiation emitted by radioactive substances such as radium more penetrating than alpha rays and consisting of negatively charged electrons The electrons are the same kind of
Helium
constitutes alpha rays and helium is therefore formed as a decomposition product of certain radioactive substances such as radium The normal helium nucleus has two protons and two neutrons but an isotope with only one neutron is
radiothorium
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
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