If a Nuclide Has a Decay Constant of 0

question 43

Short Answer

If a nuclide has a decay constant of 0.765 × 10^-6 s^-1 and contains 3.0 × 10¹⁷ nuclei
(a) what is the half life?
(b) what is its initial activity?
(c) what is the activity after 12. days?

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Definitions:

Molarity

A concentration unit used to describe the amount of solute in moles divided by the volume of the solution in liters.

NaBr

Sodium Bromide, a chemical compound with the formula NaBr, used in medicine, as a sedative or anticonvulsant, and in photographic processing.

KI

The chemical formula for potassium iodide, an ionic compound that is used medically in thyroid blocking and also as a nutritional supplement.

Molarity

A metric determining the amount of a solute within a solution, specified as moles of the solute for every liter of solution.