carinarios771 carinarios771

27-10-2020
Chemistry

contestada

If a 200 g sample of Radon-220 has a half-life of 55 seconds. How much material is left after
220 seconds?
A 12.5 g
B) 25 g
c) 55 g
D) 100 g

Respuesta :

bernardlans13 bernardlans13

27-10-2020

The answer is A - 12.5 grams. Every 55 seconds, half of the Radon would decay. After 220 seconds, this process would have occurred 4 times.

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eq068116 eq068116

18-05-2021

The answer is B 12.5g

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