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אין תוצאות חיפוש עבור: results/The_half-life_of_a_radioactive_isotope_is_defined_as_the_time_it_takes_for_the_number_of_nuclei_of_the_isotope_in_a_sample_to_halve_or_the_time_it_takes_for_the_count_rate_from_a_sample_containing_the_isotope_to_fall_to_half_its_initial_level.,3,0,7033;10342;10434,0,30,1,tn,1.html