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Hon Chem Ch 21 Pg 646 Types of Radioactive Decay

Hon Chem Ch 21 Pg 646 Types of Radioactive Decay. Alpha – 2 protons and 2 neutrons, He nucleus, stopped by paper or clothes ex: Pg 646 Beta – neutron splits into proton and electron, proton stays, electron leaves, stopped by lead or glass ex: Pg 646

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Hon Chem Ch 21 Pg 646 Types of Radioactive Decay

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  1. Hon ChemCh 21 Pg646Types of Radioactive Decay • Alpha – 2 protons and 2 neutrons, He nucleus, stopped by paper or clothes ex: Pg646 • Beta – neutron splits into proton and electron, proton stays, electron leaves, stopped by lead or glass ex: Pg646 • Gamma – high energy invisible light wave, no change in mass, stopped by lead and concrete, picture Pg647 **Graph Pg650, Pg664#11-13 in NB

  2. Half-Life Pg648 • Time it takes for half of radioactive isotope to decay, graph pg648 • Practice Pg649

  3. Fission and Fusion • Fission – heat from splitting the atom creates steam that turns turbines and makes electricity, Pg657-58 • Fusion – two H atoms combining to make 1 He atom, creating huge amt of energy in the sun Pg659 Turn in: Pg665#26-29, 40 a, b, 41, 42, 43, 46 (c= speed of light = 3 x 108 m/s), Pg6621, 2, Pg667 #1,3,6,8,9

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