Uranium-235 Has a Half-Life of 7

question 42

Multiple Choice

Uranium-235 has a half-life of 7.04 × 10⁸ years.How many years will it take for 99.9% of a U-235 sample to decay?

• A) 7.0 × 10⁵ yr
• B) 1.0 × 10⁶ yr
• C) 4.7 × 10⁹ yr
• D) 4.9 × 10⁹ yr
• E) 7.0 × 10⁹ yr

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Definitions:

Quarterly Dividends

Dividend payments made to shareholders four times a year, typically every three months.

Shares

Units of ownership in a company or financial asset that give shareholders a portion of the corporation's assets and profits.

Capital Gain

The increase in value of an asset or investment above its purchase price, often realized upon sale of the asset.

Total Return

The complete return on an investment over a given time period, including both capital gains and dividends or interest, expressed as a percentage of the initial investment cost.