Nuclear Physics: Radioactivity 2

Flashcards by alex.examtime9373, updated more than 1 year ago
Created by alex.examtime9373 over 7 years ago


This flash card deck covers the three types of radiation, ionisation, penetration, radioisotopes and detection of nuclear radiation. It can be used alongside the mind map on nuclear physics,and the corresponding note on radioactivity.

Resource summary

Question Answer
Radioactivity Spontaneous emission of radiation due to the natural disintegration of an unstable nucleus
Radiation Emission of particles of matter or photons of energy
Types of radiation Alpha, beta, gamma
Deflection of radiation in electric fields Alpha - positively charged; Beta - negatively charged; Gamma - no charge
Deflection of radiation in magnetic fields Alpha and beta radiation travel in a circular direction
Ionisation Neutral atom or molecule acquires a negative or positive charge by gaining or losing electrons
Penetration Distance the radiation travels through a medium
Radioisotope Unstable isotope of an element that disintegrates spontaneously, emitting radiation
Uses of radioisotopes Medicine, food irradiation, agriculture, carbon dating, smoke detectors
Detection of nuclear radiation Geiger Muller tube; Solid state detector
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