Respuesta :

kenmyna
1   year  is   the    half  life   of  Uranium  that  is  time   taken  for  uranium  of   specific  isotope  to  fall  to  half  its  original  value
After 6  years  the   mass  of  uranium  will  be 
Final  mass= intial  mass  x  (1/2)^time  taken
that  is  78  x  (1/2)^6=1.219grams
W0lf93
After six years, 1.21875 gram of uranium will remain, since uranium loses half of its mass each year. At end of year 1, 39 gram is left. At end of year 2, 19.5 gram; at end of year 3, 9.75 gram; at end of year 4, 4.875 gram; at end of year 5, 2.4375 gram and finally, at end of year 6, 1.21875 gram is left.

Otras preguntas