Half-life - Wikipedia
Half-life (symbol t½) is the time required for a quantity (of substance) to reduce to half of its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms …
31.5: Half-Life and Activity - Physics LibreTexts
Dec 13, 2024 · Half-life \(t_{1/2}\) is the time in which there is a 50% chance that a nucleus will decay. The number of nuclei \(N\) as a function of time is \[N = N_0e^{-\lambda t},\] where …
Half-Life in Radioactive Decay: Definition, Equation, Graph, & Table
Nov 5, 2024 · This formula shows how the number of undecayed atoms decreases exponentially over time, with each half-life reducing the remaining number of radioactive atoms by half. In …
5.7: Calculating Half-Life - Chemistry LibreTexts
Jun 26, 2023 · A useful concept is half-life (symbol is \(t_{1/2}\)), which is the time required for half of the starting material to change or decay. Half-lives can be calculated from measurements …
14.2: Half-Life - Chemistry LibreTexts
3 days ago · The half-life of a specific radioactive isotope is constant; it is unaffected by conditions and is independent of the initial amount of that isotope. Consider the following example. …
Half-Lives and Radioactive Decay Kinetics - Chemistry LibreTexts
Jan 30, 2023 · Use Equation \(\ref{21.4.2}\) to calculate the half-life of the reaction. Multiply the initial concentration by 1/2 to the power corresponding to the number of half-lives to obtain the …
Decay Constant & Half-Life | DP IB Physics Revision Notes 2023
Dec 17, 2024 · Therefore, half-life t ½ can be calculated using the equation: This equation shows that half-life t ½ and the radioactive decay rate constant λ are inversely proportional. …
Half-Life Formula: Components and Applications - HowStuffWorks
Feb 14, 2024 · In nuclear physics, the concept of half-life plays a crucial role in understanding the decay of radioactive substances. Scientists use the half-life formula in other disciplines to …
Half-Life Calculator
The half-life calculator is a tool that helps you understand the principles of radioactive decay. You can use it to not only learn how to calculate half-life, but also as a way of finding the initial and …
Radioactive Half-Life - HyperPhysics
Radioactive Half-Life. The radioactive half-life for a given radioisotope is a measure of the tendency of the nucleus to "decay" or "disintegrate" and as such is based purely upon that …