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Report, October , 1949

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AN ANALYSIS OF THE MINERAL PADIUM Radium, an alkaline earth motal, is one of the nost important of the radiosetive elements found in nature. This is due to its relatively long life end the fact that it is the parent of E series of redioactive elements which enit minute particles of matter or radiations, useful industrially and therapeutically. Radium was discovered by Professor and Madame Curie in Paris in 1898 as the result of attempts to identify the source of invisible radiations which affected unexposed photographic plates. A radioactive alement is an element which possesses the chemical end physical properties of the nornal, stable element, but differs in that a portion of it, as a conse- quence of the emission of rays or particles, is continually undergoing a change, at a fixed and determinable rate, into other radioactive elements, until a series of disintegrations is completed and the final elenent is non-radioactive. This series of changes is called *a disintegration series". In it each element is the parent of the one which follows and the child of the one which precedes it. Starting with the element redium, such a *disintegration series", comprising nine successive changes, ultimately results in the non- radiosetive element, lead. This series of disintegrations is the result of

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1
Source index
0
Type
photo
Media ID
fc0996564b754ff9
Size
unknown

Document data

ID
75730541
Core
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Type
document
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    "ocrText": "AN ANALYSIS OF THE MINERAL PADIUM\nRadium, an alkaline earth motal, is one of the\nnost important of the radiosetive elements found in nature.\nThis is due to its relatively long life end the fact that\nit is the parent of E series of redioactive elements which\nenit minute particles of matter or radiations, useful\nindustrially and therapeutically. Radium was discovered by\nProfessor and Madame Curie in Paris in 1898 as the result\nof attempts to identify the source of invisible radiations\nwhich affected unexposed photographic plates.\nA radioactive alement is an element which possesses\nthe chemical end physical properties of the nornal, stable\nelement, but differs in that a portion of it, as a conse-\nquence of the emission of rays or particles, is continually\nundergoing a change, at a fixed and determinable rate, into\nother radioactive elements, until a series of disintegrations\nis completed and the final elenent is non-radioactive. This\nseries of changes is called *a disintegration series\". In\nit each element is the parent of the one which follows and\nthe child of the one which precedes it. Starting with the\nelement redium, such a *disintegration series\", comprising\nnine successive changes, ultimately results in the non-\nradiosetive element, lead.\nThis series of disintegrations is the result of"
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