作业 用质量亏损计算2H、40Ca、197Au、252Cf的结 合能和比结合能 2计算1kg235U吸收中子完全发生裂变释放的能量 (用Me∨表示),相当于多少吨煤燃烧时释放的 能量(1吨煤燃烧所放出的热能为8×109cal) 3从13C核中取出一个中子或质子,各需多少能 量,解释两者有巨大差别的原因 北才浮 2005-9-13 NECPKU, C L, Liu
放射化学 Radiochemistry ■开课院:化学学院 主讲教师:刘春立(62765905,.1iucl0u.leau.cn) ■选修对象:化学物理及部分研究生 周二,1~2,理教114 北才浮 2005-9-13 NECPKU, C L
原子核及其性质 ■原子核的组成 ■原子核的性质 北才浮 2005-9-13 NECPKU, C L
Units Prefi Symbol Meaning era T 10 Me M Kil Deci Centi C 2 Milli- 103 Mi 10 Pico 12 北才浮 2005-9-13 NECPKU, C L
Terms to know Alpha(a)(4He原子核) Atomic mass(原子量) Atomic number(原子序数) Baryons(重子) Beta(B Cyclotron(回旋加速器) Daughter(子体) Decay chains(衰变链) 北才浮 2005-9-13 NECPKU, C L
Terms to know ■ Electron(电子 Particles(粒子) a Elementary vector bosons(玻色子) a Gamma()(y射线) a Hadrons(强子) Isobars(同质异位素) a isomeric transition(同质异能跃迁) 2005-9-13 NECPKU, C L, Liu
Terms to know Isotones(同中子素) Isotopes(同位素) Mass excess(质量过剩) Mass number(质量数) Mesons(介子) Neutron(中子) Neutron activation(中子活化) 北才浮 2005-9-13 NECPKU, C L, Liu
Terms to know Nuclear chemistry(核化学) ■ Nuclear fission(核裂变) Nuclear isomers(同质异能素) Nucleons(核子) ■ Nucleus(核) Nuclide(核素) Parent(母体) 北才浮 2005-9-13 NECPKU, C, L Liu
Terms to know Positron(正电子) Proton (质子) Quarks (夸克) Radioactive(放射性) a Radiochemistry(放射化学) ■ Radionug|ide(放射性核素) Transmutation(嬗变) 北才浮 2005-9-13 NECPKU, C L
Symbols for Particles and radiation P proton 1H nucleus n neutron particle of zero charge and a=1 d deuteron 2H nucleus T triton nucleus -a alpha particle He nucleus electron Electron from atomic orbitals β negatron Negative electron emitted by the nucleus β+ positron Positive electron emitted by the nucleus y Gamma ray Electromagnetic energy(photon) emitted by the nucleus X ray xray Electromagnetic energy emitted as a result of electron transitions in the atomic orbitals Neutrino(中微子) Emitted inβ- decay processes(2 types) 北才浮 2005-9-13 NECPKU, C L, Liu
