A Radioactive Isotope of a Metal Produced a Reading of 188

question 92

Multiple Choice

A radioactive isotope of a metal produced a reading of 188 Bq.  Another reading of the activity was taken 4 hours later and the reading was 47.0 Bq.  What is the half-life of this isotope?

• A)4 hr
• B)2 hr
• C)1 hr
• D)30 min

---

Definitions:

Probation Period

A trial period at the beginning of employment during which an employee's suitability for the position is assessed.

Pay Equity Legislation

Laws designed to eliminate discrimination in compensation and ensure equal pay for work of equal value, regardless of gender, race, or other non-merit factors.

Statutory Law

Written laws enacted by a legislative body, providing formal and specific directions or prohibitions.

Employment Contract

A formal agreement between an employer and an employee outlining the terms and conditions of employment.