Featured in PASCO’s College Chemistry Instructor Guide

College Chemistry Instructor Guide

(PS-3803A)

College Instructor edition with 36 experiments covering introductory and general chemistry topics.

Half-Life of an Isotope

Lab Summary

Use an alpha beta gamma radiation sensor to investigate the radioactive decay and half-life of an isotope.

Theory

Students investigate the radioactive decay and half-life of an isotope.

Method

Students gain experience conducting the following procedures:

  • Measuring the radioactive decay of barium-137m.
  • Calculating the decay constant and half-life of an isotope.

Sensors / Equipment Used:

PASPORT Alpha Beta Gamma Radiation Sensor

(PS-2166)

A highly sensitive Geiger-Muller Counter measures beta, gamma, and alpha radiation. For use with PASPORT Interfaces.

Isotope Generator Kit (Barium-137 m)

(SN-7995A)

Demonstrate the properties of radioactive decay. Based on the original Union Carbide patented design, it offers exceptional performance, ease-of-use and safe operation.

Materials Used:

Barium-137m solution 
Aluminum plate

The Associated Bundle:

Advanced Chemistry Standard Sensor Bundle

(PS-2928A)

Contains the probeware for completing experiments in the College Chemistry lab manual.

Interface Required

This experiment may require software and an interface for data collection.