Radioactive Decay and Half-Life

Students measure the counts coming from a sample of Ba - 137m with a Geiger counter. They answer questions about radioactive decay and half-life during the 10-minute data collection time. They use the resulting graph to estimate the half-life and decay constant. They use an exponential fit to find the half-life and decay constant. Students use their results to answer questions about exponential decay.

Grade Level: College • High School

Subject: Chemistry • Physics

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Wireless Geiger Counter | Get Started

Discover how the PASCO Wireless Geiger Counter (PS-3238) measures alpha, beta, and gamma radiation for use in experiments in shielding and the inverse square...

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Wireless Geiger Counter

This Wireless Geiger Counter detects alpha, beta, and gamma ionizing radiation.

Wireless Geiger Counter with Sample Holder

This Wireless Geiger Counter detects alpha, beta, and gamma ionizing radiation. The included stand makes it easy to perform experiments on the inverse square law and radiation shielding.

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