Radium - $226$ Has a Half-Life Of $1600 \text { years }$

question 50

Essay

Radium - $226$ has a half-life of $1600 \text { years }$ . Suppose we have a $300 \mathrm {~g}$ sample.
(a) Find a formula for the mass remaining after ${ t }$ years
b) How much of the sample remains after $200$ years?
c) After how long will only $20 \mathrm {~g}$ remain?

---

Definitions:

Minor Rule Violations

Infractions or breaches of rules that are considered to be of relatively low severity or impact.

Gain Compliance

The act of securing obedience or adherence to a directive or rule.

Ethical Problems

Challenges in determining what is right or wrong in various situations, often involving moral dilemmas.

Obligations

Duties or commitments that one is bound to fulfill by moral or legal constraints.