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- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Quantum_Chemistry/Particle_in_a_Boxwhere H is the Hamiltonian operator, which finds the total energy of the system E. (This approach uses the linear algebra concept of an eigenfunction and eigenstate, but don't worry if you don't know ...where H is the Hamiltonian operator, which finds the total energy of the system E. (This approach uses the linear algebra concept of an eigenfunction and eigenstate, but don't worry if you don't know what these are.) Kinetic energy KE is given by The kinetic energy is calculated using the equation above, using the square of the momentum operator (thus, the first derivative in the momentum operator becomes a second derivative when the operator is squared).
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Quantum_Chemistry/Discovery_of_QuantizationHe assumed that the lines in the spectrum come from electrons moving from one stable orbit to another, and the wavelength of the light emitted equals the energy difference of the orbits.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Chemical_Reactions_and_InteractionsContributors and Attributions Emily V Eames (City College of San Francisco)
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Thermochemistry/The_Zeroth_Law_of_ThermodynamicsIf no change happens when they touch, we could say that they were in thermal equilibrium. (If we leave them in contact long enough, they will reach thermal equilibrium, but that is different from bein...If no change happens when they touch, we could say that they were in thermal equilibrium. (If we leave them in contact long enough, they will reach thermal equilibrium, but that is different from being in thermal equilibrium when they first touch.) If we have a system A, and we find that it is in thermal equilibrium with another system B, and also with another system C, then we know without doing the experiment that B and C are also in thermal equilibrium with each other.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Quantum_Chemistry/Light_as_a_WaveLight is called electromagnetic radiation, which basically means that it radiates (travels) and the wave part is oscillating electric and magnetic fields. X-rays used in medicine have very short wavel...Light is called electromagnetic radiation, which basically means that it radiates (travels) and the wave part is oscillating electric and magnetic fields. X-rays used in medicine have very short wavelengths and high frequencies; UV (ultraviolet) light gives you sunburns and helps you make vitamin D, visible light is normal light, IR (infrared) is used for night-vision goggles, microwave is used in cooking, and radio is used in radios.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Solids/Ionic_SolidsThe key thing is that the number of cations and anions in the unit cell is the same as the overall formula, and, for example, if the formula is AB 2 , then the coordination number of A is double the c...The key thing is that the number of cations and anions in the unit cell is the same as the overall formula, and, for example, if the formula is AB 2 , then the coordination number of A is double the coordination number of B. The main thing to know is that the smaller the ions and the larger the charge, the bigger the lattice energy is, and the more stable the solid.
- https://chem.libretexts.org/Courses/Valley_City_State_University/Chem_121/Chapter_1%3A_Matter_and_Measurement/1.2%3A_Atomic_TheoryProust was more careful to study only pure compounds, and knew how precise his measurements were, so that even though the exact numbers didn't always come out the same, once he rounded to the correct ...Proust was more careful to study only pure compounds, and knew how precise his measurements were, so that even though the exact numbers didn't always come out the same, once he rounded to the correct number of significant figures, the ratios were the same, no matter how the material was prepared.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Periodic_Trends/Electron_AffinityElectron affinity is a measure of how much an atom wants to gain an electron, becoming an anion. I think you should use the standard advanced definition, according to which electron affinity EA = IE 0...Electron affinity is a measure of how much an atom wants to gain an electron, becoming an anion. I think you should use the standard advanced definition, according to which electron affinity EA = IE 0 , the energy of this reaction: Like ionization energy, electron affinity tells us how likely an atom is to steal electrons from other atoms, or just convince them to transfer their loyalty partially.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Solids/Intro_to_SolidsThere are also many solids that are on the border between covalent and ionic: they are made of metals and non-metals, but both covalent bonding and ionic bonding are important. The simplest model of m...There are also many solids that are on the border between covalent and ionic: they are made of metals and non-metals, but both covalent bonding and ionic bonding are important. The simplest model of metallic bonding is the "sea of electrons" model, which imagines that the atoms sit in a sea of valence electrons that are delocalized (spread out) over all the atoms.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/General_Chemistry_Supplement_(Eames)/Lewis_Bonding_TheoryContributors and Attributions Emily V Eames (City College of San Francisco)
- https://chem.libretexts.org/Courses/College_of_the_Canyons/Chem_151%3A_Preparatory_General_Chemistry_OER/10%3A_Solutions/10.02%3A_Solutions_Solvation_and_DissociationDissolution means the process of dissolving or forming a solution. When dissolution happens, the solute separates into ions or molecules, and each ion or molecule is surrounded by molecules of solvent...Dissolution means the process of dissolving or forming a solution. When dissolution happens, the solute separates into ions or molecules, and each ion or molecule is surrounded by molecules of solvent. The interactions between the solute particles and the solvent molecules is called solvation.
