Atoms and the Bohr Model Reading:Gray:(1-1)to (1-7) 0GC:(1.3),(1.4),(3.2),(4.1)to(4.3) -1
Atoms and the Bohr Model Reading: Gray: (1-1) to (1-7) OGC: (1.3), (1.4), (3.2), (4.1) to (4.3) I-1
Outline of First Lecture I,General information about the atom II.How the theory of the atomic structure evolved A.Charge and Mass of the atomic particles 1.Faraday 2.Thomson 3.Millikan B.Rutherford's Model of the atom -2
Outline of First Lecture I. General information about the atom II. How the theory of the atomic structure evolved A. Charge and Mass of the atomic particles 1. Faraday 2. Thomson 3. Millikan B. Rutherfordʼs Model of the atom I-2
H He Li Be B N O F Ne Na Mg AI Si S CI Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd n Sn Sb Te Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg TI Pb Bi At Rn Fr Ra Ac Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Im Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md Lr Atoms consist of: Mass (a.m.u.) Charge (eu) 6 Protons 1 +1 Neutrons 0 C Electrons 1/1836 -1 12.01 -3
H Li Na K Rb Cs Fr Be Mg Ca Sr Ba Ra Sc Y La Ac Ti Zr Hf V Nb Ta Cr Mo W Mn Tc Re Fe Ru Os Co Rh Ir Ni Pd Pt Cu Ag Au Zn Cd Hg B Al Ga In Tl N P As Sb Bi O S Se Te Po F Cl Br I At He Ne Ar Kr Xe Rn Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 6 Atoms consist of: Protons Neutrons Electrons Mass (a.m.u.) ~1 ~1 1/1836 Charge (eu) +1 0 -1 Si Ge Sn Pb C C 12.01 6 I-3
105A (Nucleus) O Electron Cloud 1A 1A=10-10m Note:Nucleus not drawn to scale！ -4
10-5 Å 1 Å = 10 –10 m 1 Å (Nucleus) Electron Cloud Nucleus not drawn to scale! Note: I-4
HOW DO WE KNOW: ◆Atomic Size? Charge and Mass of an Electron? Charge and Mass of a Proton? Mass Distribution in an Atom? 1-5
Atomic Size? Charge and Mass of an Electron? Charge and Mass of a Proton? Mass Distribution in an Atom? HOW DO WE KNOW: I-5