L03_A
Atomic and Nuclear Physics
2-1 Fundamental Particles
Fundamental Forces
重力、電磁力、強力、弱力
Fundamental Particles
Leptons
electron leptons
muonic leptons
tauonic leptons
Hardons
baryons(包含中子與質子 )
mesons
Electrons
Rest Mass
Electrical Charges(positrons and negatrons)
相對論中真正的電子質量
Electron annihilation
Protons
Rest Mass, Electrical Charge(always positive)
Neutrons
Rest Mass, unstable free neutrons
mean life time of free neutrons
Photons
Wave-particle duality
Both rest mass and electrical charge are zero
Nutrinos
Both rest mass and electrical charge are zero
2-2 Atomic and Nuclear Structure
Atomic number,Z
the numbers of neutrons, N
Z+N=A(atomic mass number)
Nuclide
isotopes, same Z(同位素)
