Half-Life Assessment

A radioactive atom changes into a stable atom by emitting radiation. This process is random and occurs at a specific rate.

A process where the number of radioactive atoms in a sample reduces by half over a specific time. It's a constant rate for a particular isotope.

A stable atom formed after a radioactive atom undergoes decay. It no longer emits radiation.

A device used to detect the presence of radiation emitted by radioactive atoms.

Tiny particles and/or energy released from a radioactive atom during decay.

The number of radioactive atoms decreases by half with every half-life, while the number of daughter atoms doubles. This means they change at different rates.

The half-life determines how quickly or slowly a substance decays. A shorter Half-life means the substance decays faster, while a longer Half-life indicates slower decay.

The data demonstrates the concept of half-life by showing that the number of radioactive atoms decreases by half every 10 seconds, which is the defined half-life in this simulation.

The decay curve is a graphical representation of how the number of radioactive atoms decreases over time. The shape of the curve depends on the half-life of the substance.

A graph displaying the decreasing amount of radioactive atoms over time. It starts high and gradually slopes downwards, showing faster decay for shorter half-lives.

A graph depicting the decreasing amount of radioactive atoms over time, but with a gentler slope than a short half-life. This means it takes longer for the substance to decay.

The number of radioactive atoms reduces by half during each half-life period. This reduction continues until the substance reaches a stable state with minimal radioactivity.

A simulation is a representation of a real-world phenomenon. In this case, it uses digital tools to illustrate radioactive decay and its properties.

The number of radioactive atoms present in a sample decreases by half with every half-life.

The radioactive atom that undergoes a radioactive decay process. Its number decreases with time.

An experiment where you simulate radioactive decay by randomly selecting atoms to decay. This allows you to visualize the concept of half-life.

A theoretical model of radioactive decay that allows you to observe the decay of a large sample of atoms based on the idea of half-life.

A plot that shows the change in the number of radioactive atoms over time. It provides a visual representation of the decay process.

The time it takes for half of the radioactive atoms in a sample to decay.

The number of atoms present does not affect the half-life of a radioactive substance. The half-life remains constant.

Radiometric dating uses the decay of radioactive isotopes to determine the age of fossils, rocks, and artifacts by comparing the amount of the radioactive isotope to its stable daughter product.

Carbon-14 dating is a type of radiometric dating that uses the decay of carbon-14 to date organic materials.

It takes about 19,000 years for an object to lose 97% of its original carbon-14 content because the half-life of carbon-14 is approximately 5,730 years (roughly 6,000 years for simplification).

An object with 63% carbon-14 remaining is approximately 4,000 years old. This is because it has gone through roughly two half-lives (6,000 years each) since it had 100% carbon-14.

An object with 22% of its original carbon-14 content is approximately 15,000 years old. This is because it has gone through roughly three half-lives (6,000 years each) since it had 100% carbon-14.

An object with 79% carbon-14 remaining is approximately 1,000 years old because it has gone through one half-life (6,000 years) since it had 100% carbon-14.