Radioactive Decay & Half Life This lesson covers: What the terms 'activity' and 'half-life' mean How to interpret a graph of radioactive decay How to calculate the activity and half-life of a radioactive material

Alpha, Beta & Gamma Radiation This lesson covers: The reasons behind the instability and radioactivity of atomic nuclei The four primary types of nuclear radiation emissions The fundamental properties of …

(a) The designers used a beta radiation source for this control system.

Alpha, Beta & Gamma Radiation This lesson covers: The four types of nuclear radiation: alpha particles, beta particles, gamma rays, and neutrons How ionising each type of radiation is How penetrating …

Radioactive Decay This lesson covers: Defining the half-life (t 21 ) of a radioactive isotope Explaining exponential decay of unstable nuclei over time Using graphs to determine the half-life from number …

Comprehensive exam-style questions on Radioactivity for the A-Level Physics AQA specification.

Decay rates and the decay constant Various radioactive isotopes decay at differing rates by emitting radiation. The decay constant, denoted as (λ), is a measure that indicates the likelihood of a …

Alpha, Beta and Gamma Radiation This lesson covers: The four types of nuclear radiation: alpha particles, beta particles, gamma rays, and neutrons How ionising each type of radiation is How …

Comprehensive exam-style questions on Radioactivity for the GCSE Physics OCR 21st Century Higher Triple specification.

an ecf from incorrect first half-life to correct second half-life e.g. 800---400 1