why was it not possible to predict how many elements could be discovered between two elements
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it was possible for some
mendeleev did predicted many with a high accuracy
mendeleev did predicted many with a high accuracy
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when atomic number is used you exactly know
that how many elements can be discovered between two elements. it will be equal to difference of atomic numbers.
whereas Atomic mass is not fixed and can vary from element to element .. a element can have more mass than expected as the number of neutrons can be variable and cannot be determined. in short atomic mass is not periodic it may change abruptly. and this randomness increases as we go to higher elements.
as atomic mass was used for classifying elements it wasn't posssible to know exactly the numbers of elements.
that how many elements can be discovered between two elements. it will be equal to difference of atomic numbers.
whereas Atomic mass is not fixed and can vary from element to element .. a element can have more mass than expected as the number of neutrons can be variable and cannot be determined. in short atomic mass is not periodic it may change abruptly. and this randomness increases as we go to higher elements.
as atomic mass was used for classifying elements it wasn't posssible to know exactly the numbers of elements.
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