The Half-Life of Radium Is Approximately 1,600 Years

question 43

Multiple Choice

The half-life of radium is approximately 1,600 years. If the present amount of radium in a certain location is 900 grams, how much will remain after 400 years? Express your answer to the nearest gram.

• A)Q = 734 gram
• B)Q = 768 gram
• C)Q = 757 gram
• D)Q = 752 gram
• E)Q = 744 gram

---

Definitions:

University

An institution of higher education and research, which awards academic degrees in various disciplines and provides both undergraduate education and postgraduate education.

Foreign

Pertaining to or originating from a country other than one's own.

Origin

The point or place where something begins, arises, or is derived.

University

An institution of higher education and research which awards academic degrees in various disciplines.