Hon chem ch 21 pg 646 types of radioactive decay
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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
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


Half life pg 648
Half-Life Pg648

  • Time it takes for half of radioactive isotope to decay, graph pg648

  • Practice Pg649


Fission and fusion
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