Models of the Hydrogen Atom

Jan 06, 2020

50 likes | 97 Views

Models of the Hydrogen Atom. Spectrometer Outputs: 10 minute samples with applet set to “fast”. Experiment vs. Bohr. Experiment vs. deBroglie. Experiment vs. Schrodinger. Credits. PhET simulations: http://phet-web.colorado.edu/web-pages/simulations-base.html

Share Presentation

Embed Code

Link

schrodinger
spectrometer outputs
hydrogen atom
applet set
10 minute samples
phet simulations phet web

dnettles

Download Presentation

Models of the Hydrogen Atom

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Models of the Hydrogen Atom Spectrometer Outputs: 10 minute samples with applet set to “fast”
Experiment vs. Bohr
Experiment vs. deBroglie
Experiment vs. Schrodinger
Credits • PhET simulations:http://phet-web.colorado.edu/web-pages/simulations-base.html • Hydrogen Atom Models simulation:http://phet.colorado.edu/simulations/hydrogen-atom/hydrogen-atom.jnlp

The Real Hydrogen Atom

The Real Hydrogen Atom. Solve SE and in first order get (independent of L): can use perturbation theory to determine: magnetic effects (spin-orbit and hyperfine e-A) relativistic corrections

695 views • 15 slides

2 The hydrogen atom

2 The hydrogen atom.

565 views • 25 slides

Models of the hydrogen atom

Models of the hydrogen atom. Why don’t electrons just spiral into nucleus? Why don’t positive charges in nucleus repel each other?. Issues with Rutherford model. Inquiring minds want to know…. James Chadwick. Neils Bohr. The big question….

289 views • 14 slides

Models of the Atom:

Models of the Atom:. a history. The Atom’s History……. Recognized 4 major elements: Fire Earth Water Air. Democritus (4th century BC) Greece. Believed that matter was composed of tiny indivisible particles called atoms (“indivisible”) Based on philosophy NOT experimentation .

445 views • 14 slides

Models of the Atom

Models of the Atom. Review of Ancient Models of Matter. Leucippus and Democritus - the idea of the “atom” – the indivisible particle Empedocles and Aristotle - the 4-element model Aristotle, Aquinas and The Church – the 4-element model persists for over 2000 years.

595 views • 23 slides

The Bohr Model of the Hydrogen Atom

The Bohr Model of the Hydrogen Atom. In 1911, Rutherfords  - particle experiments were very controversial The idea that all the positive charge of an atom was crammed into the nucleus was hard for many to accept. In 1913, Neils Bohr, a Danish physicist proposed:

6.97k views • 32 slides

Models of the Atom

Models of the Atom. Rutherford, Bohr, De Broglie and Quantum Physics. Nature of Electrons. Originally called cathode rays Reversing magnet shows that they are charged particles. Plum Pudding Model (Thompson - 1890’s). Positively charged material. Rutherford Experiment (1911).

770 views • 34 slides

Hydrogen Atom

-. +. Hydrogen Atom. Coulomb force “confines” electron to region near proton => standing waves of certain energy. Electron in n=2 level makes a transition to lower level by emitting a photon of frequency f=E/h = (E 2 -E 1 )/h =c/ . 3. 2. 1. Transitions.

691 views • 15 slides

Models of the atom

Models of the atom. GCSE Level. The atom. The atoms are listed in the periodic table. What do you know about the ‘atom’? What have you been taught about it?. Current model of the atom. You need to know:.

351 views • 13 slides

The Bohr Model of the Hydrogen Atom

The Bohr Model of the Hydrogen Atom. Some Background on Neils Bohr. Neils Bohr (1885-1962) Born in Copenhagen, Denmark. Worked with Ernst Rutherford in England. Nobel Laureate (1922) for his work in Particle Physics.

826 views • 9 slides

Models of the Atom

Models of the Atom. Remember: models are used to help us to understand what we cannot readily see…they can change as we continue to learn. Bohr Model. Electrons travel in orbits/paths These orbits have fixed energies…we can call them energy levels .

226 views • 7 slides

The Hydrogen Atom

z. e -. q. r. +. x. f. y. The Hydrogen Atom. Coordinates Systems. e -. r. spherical polar coordinates. r e. Z. R. +. r p. X. Y. center of mass or barycenter. z= r cos ( q ) y= r sin ( q ) sin ( f ) x= r sin ( q ) cos (f). reduced mass. moment of inertia: I=mr 2

436 views • 16 slides

Models of the Atom

Models of the Atom. Ancient Greeks: All matter is made up of atoms. These are indivisible. Different substances are made up of different types of atoms A homogeneous piece of matter is made up of all the same type of atom. Models of the Atom. Dalton (early 1800’s)

199 views • 7 slides

Models of the Atom

Models of the Atom. Models of the Atom. 1907 Plum Pudding Model - Thomson. Rutherford Model 1911. Ernest Rutherford “atoms contain a very small heavy central positive nucleus, with the e- orbiting randomly around. Alpha a particles are He nuclei 2p + , and 2n o. 2 elementary charges.

994 views • 71 slides

Models of the Atom

Models of the Atom. Physics 1161: Lecture 23. Sections 31-1 – 31-6. Bohr model works, approximately. Hydrogen-like energy levels (relative to a free electron that wanders off):. Energy of a Bohr orbit. Typical hydrogen-like radius (1 electron, Z protons):. Radius of a Bohr orbit.

394 views • 24 slides

Models of the Atom

Models of the Atom. Development of the Atomic Model. Could Rutherford’s atomic model explain the chemical properties of an element? No, to describe the chemical properties of an element we needed a model that better describes the behavior of electrons. The Bohr Model.

127 views • 10 slides

Models of the Atom

Models of the Atom. John Dalton’s Model of the Atom (1827). Dalton like the Greeks thought that atoms were hard indivisible, uncuttable particles, solid like billiard balls. Electricity and Vacuum Tubes Shed Light on Atoms.

287 views • 27 slides

Hydrogen Atom

Hydrogen Atom. Returning now to the hydrogen atom we have the radial equation left to solve The solution to the radial equation is complicated and we must be content with the result. Hydrogen Atom. Comments The radial wave functions are listed and shown on the following slides

542 views • 17 slides

Models of the atom

151 views • 13 slides

Models of the Atom

Models of the Atom. Ancient Greece. 300 BC in Greece School of thought that matter is made up of tiny indivisible, invisible, indestructible, fundamental units of matter called atoms (means “that which cannot be divided”) Democritus of Abdera most well known atomist. Did no experiments

289 views • 27 slides

Hydrogen Atom

Hydrogen Atom. PHY 361 2008-03-19. review of L z operator, eigenfunction, eigenvalues rotational kinetic energy traveling and standing waves spherical coordinates definition Laplacian operator Schr ödinger’s equation in spherical coordinates separation of angular variables:

152 views • 10 slides

More Related