nanipointer11
contestada

A sample contains 10 g of a radioactive isotope. How much radioactive isotope will remain in the sample after 1 half-life?

a.5.0
b. 2.5
c. 7.5
d.10

Respuesta :

AL2006
After one half-life, 50% of the sample has decayed and
is no longer radioactive.

50% of the original 10 g is 5 g.

After one half-life, 5 g has decayed, and 5 g remains.  (a)

Answer:

5.0

Explanation:

just took the test

Otras preguntas