If an Isotope Has a Half-Life of 4 Million Years

question 46

Multiple Choice

If an isotope has a half-life of 4 million years and a fossil is 16 million years old, how much of the original isotope will be found in the fossil?

• A) one-half of the original amount
• B) one-quarter of the original amount
• C) one-eighth of the original amount
• D) one-sixteenth of the original amount

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Definitions:

Initial Value Method

An accounting approach where investments are recorded at their acquisition cost.

Dividends

A company's profit-sharing with its investors, generally executed through financial payments.

Net Income

The net income of a company once all costs, taxes, and losses have been deducted.

Partial Equity Method

An accounting technique used when a company has significant influence over another company but does not control it outright, recognizing income to the extent dividends are received.