The Half-Life of the Radium Isotope Ra-226 Is Approximately 1,599

question 37

Multiple Choice

The half-life of the radium isotope Ra-226 is approximately 1,599 years.What percent of a given amount remains after 800 years? Round your answer to two decimal places.

• A)70.70 %
• B)5.71 %
• C)72.70 %
• D)25.02 %
• E)0.71 %

---

Definitions:

Two Goods

A reference to two distinct products or commodities in economic analysis, often used in discussions of consumer choice and preference.

World Price

The price at which goods are traded internationally, determined by supply and demand in the global market.

Domestic Price

Domestic price is the price of a good or service within a country, influenced by local supply and demand conditions, taxes, and subsidies.

Exports and Imports

involve the selling of goods and services to other countries (exports) and buying goods and services from other countries (imports), crucial components of a country's economy.