Chemistry 1.2 Radioactivity
- Created by: Dan
- Created on: 21-12-13 17:39
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- Some isotopes are unstable, their nuclei spontaneously disintergrate
- a particles = Cluster of 2 protons and 2 neutrons (Poisitively charged +)
- B particles = Fast moving electrons (Negitiviely charged -)
- Y rays = High energy electromagnetic radiation (No charge)
- When an element emitts an alpha particle its mass number decreases by 4 and its atomic number decreases by 2 (2+2=4) (2+0=2) 2 places to the left
- When an element emitts a beta particle its mass number is…
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