ch30 - Chapter 30 The Nature of the Atom 30.1 Rutherford...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Chapter 30 The Nature of the Atom 30.1 Rutherford Scattering and the Nuclear Atom In its natural state, an atom is electrically neutral. 30.1 Rutherford Scattering and the Nuclear Atom A Rutherford scattering experiment. 30.1 Rutherford Scattering and the Nuclear Atom Conceptual Example 1 Atoms are Mostly Empty Space In the planetary model of the atom, the nucleus (radius = 10-15 m) is analogous to the sun (radius = 7x10 8 m). Electrons orbit (radius = 10-10 m) the nucleus like the earth orbits (radius = 1.5x10 11 m) the sun. If the dimensions of the solar system had the same proportions as those of the atom, would the earth be closer to or farther away from the sun than it actually is? 30.2 Line Spectra The individual wavelengths emitted by two gases and the continuous spectrum of the sun. 30.2 Line Spectra The Line Spectrum of Hydrogen Lyman series Balmer series Paschen series , 4 , 3 , 2 1 1 1 1 2 2 = - = n n R λ , 5 , 4 , 3 1 2 1 1 2 2 = - = n n R λ , 6 , 5 , 4 1 3 1 1 2 2 = - = n n R λ 30.3 The Bohr Model of the Hydrogen Atom In the Bohr model, a photon is emitted when the electron drops from a larger, higher-energy orbit to a smaller, lower energy orbit. hf E E f i =- 30.3 The Bohr Model of the Hydrogen Atom THE ENERGIES AND RADII OF THE BOHR ORBITS r kZe r kZe mv E 2 EPE KE 2 2 2 2 1- =- = + = 30.3 The Bohr Model of the Hydrogen Atom , 3 , 2...
View Full Document

This note was uploaded on 02/20/2010 for the course PHYSC 210 taught by Professor Uscinski during the Summer '09 term at American.

Page1 / 41

ch30 - Chapter 30 The Nature of the Atom 30.1 Rutherford...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online