sararosall1963 sararosall1963

15-04-2019
Chemistry

contestada

An element has a half-life of 30 years. if 1.0 mg of this element decays over a period of 90 years, how many mg of this element would remain?

Respuesta :

keyshawnbratcher keyshawnbratcher

23-04-2019

Answer:

144.6

Explanation:

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