The Half-Life for Electron Capture for Is 1

question 31

Multiple Choice

The half-life for electron capture for is 1.30  10⁹ years. What percent of the original remains after 3.90 10⁹ years?

• A) 12.5%
• B) 75.0%
• C) 25.0%
• D) 33.3%
• E) 50.0%

---

Definitions:

Retained Earnings

Retained Earnings represent the cumulative amount of net income earned by a company that has not been distributed to shareholders as dividends.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against a fixed asset since it was acquired and placed into service.

Debited

An accounting term describing the recording of an increase in assets or a decrease in liabilities and equity.

Liabilities

Financial obligations or debts a company owes to others, which must be settled over time through the transfer of assets, provision of services, or other economic benefits.