trinityrust2005 trinityrust2005

23-10-2020
Chemistry

contestada

A sample originally contained 1.28 g of a radioisotope. It now contains 1.12 g of its daughter isotope.
How many half-lives have passed since the sample originally formed?

Respuesta :

zerotwo866 zerotwo866

23-10-2020

Answer:

3

Explanation:

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