keonaspratley15 keonaspratley15

22-10-2021
Chemistry

contestada

How long will it take for 25.0 g of Ra-226 to decay to leave a total of 1.56 g? Ra-226 has a half-life of 1600 years.

8000years
4800years
3200years
6400years

Respuesta :

tsaunders035 tsaunders035

05-11-2021

Answer:

mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Explanation:

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

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