Atomic structure
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This document summarizes key concepts from an electronic structure lesson, including: 1) The basic atomic model contains protons, neutrons, and electrons, with electrons orbiting the nucleus. 2) Compounds like sodium chloride show that atoms bond via their electrons, not by their nuclei touching. 3) Rutherford's model could not explain the stability of atoms, so Bohr proposed electron orbits to explain atomic line spectra. 4) Light is an electromagnetic wave, and its wavelength determines if it is visible light, radio waves, etc. Frequency and wavelength are related by the speed of light.
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4. Spectrochemical series that ranks ligands based on the ligand field splitting they cause. Heavier π-donor ligands do not always follow the series trends in complex stability.
Uv vis spektra senyawa kompleks2 penting
This document discusses electronic transitions in metal complexes that give rise to UV-Vis spectra. It introduces concepts like Russell-Saunders coupling, spin multiplicity, Hund's rules, and the Tanabe-Sugano diagram to explain the electronic terms and transitions for complexes. Selection rules like the Laporte and spin rules are also covered, as well as how charge transfer transitions between the metal and ligand can produce more intense bands in the spectra. Determining the ligand field splitting parameter Δo from observed transition energies is also summarized.
Reaksi anorg 3
Mekanisme reaksi hidrolisis ligan 1,2-bis(2-piridil)etandion menjadi asam pikolinat dan ion pikolinat melalui tahapan adisi nukleofilik metanol dan air, pemutusan ikatan rangkap, reaksi transfer proton, eliminasi, esterifikasi, dan keseimbangan antara asam pikolinat dan ion pikolinat dalam larutan.
Rx anorg 1
Reaksi redoks antara Cr(III) dan Mn(II) dalam kompleks anorganik. Transfer elektron terjadi melalui reaksi inner sphere antara ligan oksalat dan pikolin pada Cr dan Mn. Hal ini menghasilkan produk substitusi Cr(II) dan Mn(III).
Solution concentration
This document discusses different methods of calculating solution concentration:
1) Grams per liter is the ratio of the mass of solute to the volume of solution in liters.
2) Molarity is the ratio of moles of solute to liters of solution.
3) Mass percent is the ratio of the mass of solute to the total mass of solution expressed as a percentage.
4) Parts per million is the ratio of the mass of solute to the total mass of solution multiplied by one million.
Equilibrium
The document discusses chemical equilibrium and Le Chatelier's principle. It explains that chemical equilibrium occurs when the rates of the forward and reverse reactions are equal, and the concentrations of reactants and products remain unchanged. Le Chatelier's principle states that if a system at equilibrium experiences a change in concentration, temperature, or pressure, the equilibrium will shift to counteract the applied stress. The document provides examples of how changing temperature, concentration, or pressure would cause the equilibrium of a reaction to shift left or right.
Reaction types
There are several types of chemical reactions:
1) Combination reactions involve two or more substances combining to form a new compound such as reactions of elements with oxygen or metals with halogens.
2) Decomposition reactions involve a single compound breaking down into simpler substances like the decomposition of water into hydrogen and oxygen gases.
3) Single replacement reactions involve a reaction where one element replaces another in a compound such as a metal replacing hydrogen in an acid.
4) Double replacement reactions involve the ions of two compounds exchanging places to form two new compounds, often with a precipitate forming.
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Mata Kuliah Komputer & Media Pembelajaran S1 PGSD UT
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Astute Business Solutions | Oracle Cloud Partner |
Your goto partner for Oracle Cloud, PeopleSoft, E-Business Suite, and Ellucian Banner. We are a firm specialized in managed services and consulting.
Must Know Postgres Extension for DBA and Developer during Migration
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Venue: Bangalore International Centre, Bangalore
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Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
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Meetup Page : https://www.meetup.com/mydbops-databa...
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Atomic structure
- 2. Background: basic structure • 6.1: Review (do not have to know details) - shows evidence for the basic atomic model • Sub-atomic particles include: Protons (p +), neutrons (n°) and electrons (e–) • n°: neutral, massive, in nucleus, e –: -ve, small mass, orbits, p+: +ve, massive, in nucleus • Nucleus is small compared to size of atom e– p+ n° n° p+ Helium atom is e– shown
- 3. Background: basic structure • Previous slide was a single atom • Let’s look at a compound: Cl Na • Notice that the nuclei are far apart • In other words, it’s the electrons that are important in bond formation
- 4. Background: Movie • See movie (0 - 10) 0 - 7: as above • 7 - 10: Rutherfords model is in trouble: an “accelerated charge” should fall into nucleus • Bohr revised Rutherford’s model to explain the existance of line spectra for elements… • See Fig 6.10 (pg. 192) or refer to demo (spectroscopes act like prisms to separate light into its component colours)
- 5. Movie: electron orbits • See movie 10 - 20 • 10 - 14: Bohr suggests that electrons can only exist in certain orbits
- 6. Movie: line spectra • 14 -16: Line spectrum result from the release of photons as electrons fall back to lower orbit
- 7. Light as a wave • To understand the evidence that led Bohr to his conclusion we must understand something about the nature of light… • Read pg. 188 - 189 • light is a type of EM energy and has wave properties • Wavelength and frequency are related by λ x ν = c = 3.00 x 108 m/s • Frequency (or wavelength) determines the type of radiation (Figure 6.7)
- 8. Study notes • Point: your “study notes” should be in a form that allows you to study most efficiently: Question Answer • Benefit: Allows you to quiz yourself • Benefit: Eventually, you can eliminate questions that you already know, leaving only what you need to know
- 9. The speed of EM waves • Which is a radio wave, which is a visible wave (not drawn to relative scale) • Observe what happens as they move through space (at same speed of c) Visual Radio
- 10. The speed of EM waves • Which is a radio wave, which is a visible wave (not drawn to relative scale) • Observe what happens as they move through space (at same speed of c) Visual Radio
- 11. The speed of EM waves • Which is a radio wave, which is a visible wave (not drawn to relative scale) • Observe what happens as they move through space (at same speed of c) Visual 6 Hz Radio 3 Hz • The longer the wavelength, the smaller the frequency has to be to keep c constant
- 12. The speed of EM waves Q - Which of the following has the higher frequency (fig 6.7, pg.189): a) visible light or UV (choose one) b) X-rays or radio waves (choose one) Q - Which of the following pairs has the longer wavelength: c) Infrared or Ultraviolet (choose one) d) Gamma rays or Radio waves (choose one) For more lessons, visit www.chalkbored.com
Editor's Notes
- Equipment: OAC video 0-20 spectroscopes gas discharge tubes and related equipment