Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.2.3 Uses of Radioactivity Uses of Radioactivity Radiation is used in a number of different ways: Medical procedures including diagnosis and treatment of canc...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.2.2 Half-Life Half-Life It is impossible to know when a particular unstable nucleus will decay But the rate at which the activity of a sample decreases can b...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.2.1 Activity & Decay Activity and Decay Objects containing radioactive nuclei are called?sources?of radiation Sources of radiation decay at different?rat...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.1.6 Detecting Radiation Detecting Radiation It is important to regulate the exposure of humans to radiation The amount of radiation received by a person is c...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.1.5 Decay Equations Decay Equations Radioactive decay events can be shown using a?decay equation A decay equation is similar to a chemical reaction equation ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.1.4 Core Practical: Investigating Radiation Core Practical 13: Investigating Radiation Aim of the Experiment ?The aim of this experiment is to investigate th...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.1.3 Types of Radiation Types of Radiation Unstable Nuclei and Radiation Some atomic nuclei are?unstable This is because of an imbalance in the forces within ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.1.1 Atomic Structure Atomic Structure Atoms are the building blocks of?all matter They are incredibly small, with a radius of only 1 × 10-10?m This me...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.1.2 Isotopes Isotopes Although the number of protons in a particular element is always the same, the number of?neutrons?can be different Isotopes?are atoms o...
