What are minerals called that carry a positive or negative charge and must be carefully balanced for the body to function in a healthy state?

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

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Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.