La vida media de un isótopo radiactivo es el tiempo que le toma a una cantidad cualquiera del isótopo reducirse a la mitad de su masa inicial. si comenzamos con gramos de un isótopo radiactivo, ¿cuánto quedará después de vidas medias? utilizar la calculadora proporcionada y redondear la respuesta al gramo más cercano.

The half life of an isotope is the time that an element take to reduce the half of the mass.

Explanation:

So for example,in the case of carbon 14, one gram  takes 5730 years to reduce to 0.5 g, and then, it takes another 5730 years to be reduced to 0.250 g and so and so.

So depending the mass of the sample that you have, for example, a bone that weights 15 g, it will take 5730 years to have a mass of 7.5 g, and then 11, 460 years to have a mass of 3.75 g, and then 17,190 years to have a mass of 1.875 g, and so, and so.

Hope this info is useful.

they need to keep water moving over their gills so they seem to have active periods and restful periods instead of undergoing deep  sleep.  they sleep swim

explanation: