Polonium-208 Is an Alpha Emitter with a Half-Life of 2

question 61

Multiple Choice

Polonium-208 is an alpha emitter with a half-life of 2.90 years. How many milligrams of polonium from an original sample of 2.00 mg will remain after 8.00 years

• A) 0.147 mg
• B) 0.296 mg
• C) 0.725 mg
• D) 6.77 mg
• E) 1.90 mg

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Definitions:

Expected Return

The probable return on an investment, considering all possible outcomes and their probabilities, representing the average of all possible returns.

Beta

A measure of the volatility, or systematic risk, of a security or portfolio in comparison to the market as a whole.

Standard Deviation

Standard deviation measures the amount of variation or dispersion of a set of values, indicating the volatility or risk associated with a particular investment.

Beta

A measure of a stock's volatility in relation to the overall market; a beta greater than one indicates greater volatility.