41. plastic bags thin sheets of plastic are used to make
items such as grocery bags. the sheet...
Chemistry, 11.10.2019 05:20 porkhappycom
41. plastic bags thin sheets of plastic are used to make
items such as grocery bags. the sheets move under a
source of promethium-147, emitting beta particles. the
radiation intensity, measured under the plastic sheets,
is used to monitor the thickness of the plastic. during
this process, promethium changes into which element?
Answers: 2
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