I know that the p orbitals can be written as px, py, and pz, but what about the d orbitals?
Also, for tests, will we have to be specific and write out the subscripts, or can we just write, for example in carbon, 1s22s22p2 instead of 1s2 2s2 2px?
Search found 115 matches
- Fri Oct 18, 2019 3:13 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: 4s and 3d electron configurations
- Replies: 1
- Views: 43
In lecture today, Professor Lavelle talked about how when writing electron configurations, we should do, for example with Scandium, [insert noble gas]3d^1 4s^2 and NOT [noble gas]4s^2 3d^1. However, in my high school chemistry class, we always flipped 4s and 3d - I'm wondering why this is? I also un...
- Mon Oct 14, 2019 4:41 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty Equation
- Replies: 4
- Views: 57
Just using the equation, (uncertainty in momentum)(uncertainty in position) >= h/4pi, you can tell that if one of the factors increases and you want the product to stay the same, the other factor must decrease.
Hope this helps!
Hope this helps!
- Mon Oct 14, 2019 4:36 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Atomic Spectra Post-Module Question
- Replies: 3
- Views: 56
I agree with the above answers. Although you get a negative value for frequency when you calculate using the equation, it is because frequency is emitted and therefore "lost." When anything is "lost," it will be expressed as a negative value in an equation. However, the actual fr...
Yeah, you have to assume that the final energy level is n = 1. Then you can find the energy emitted using the c = wavelength(frequency) equation and the E = hv equation to input into the Rydberg equation.
- Fri Oct 04, 2019 11:41 pm
- Forum: Balancing Chemical Reactions
- Topic: Reaction Stoichiometry L.35
- Replies: 2
- Views: 74
First, you should balance the equations to the following (states of matter not included): Fe + Br2 -> FeBr2 3FeBr2 + Br2 -> Fe3Br8 Fe3Br8 + 4Na2CO3 -> 8NaBr + 4CO2 + Fe3O4 Then use dimensional analysis and mole ratios to solve, from the amount of NaBr given to iron: 2.50 t NaBr * (1000 kg NaBr/1 t N...
It's basically the same as any other equation, except for the compounds that are ionic and soluble in water add the (aq) subscript on the bottom. For the solids, indicate that they are solid and write them as whole compounds. However, there are also complete ionic equations in which you have to sepa...
- Fri Oct 04, 2019 8:10 pm
- Forum: Limiting Reactant Calculations
- Topic: Percent or theoretical yield
- Replies: 14
- Views: 715
I think we might, but the simple answer is just that in real life, things never go exactly right. There is a lot of potential for experimental error, as well as secondary reactions that make the actual yield lesser than the theoretical yield.
To elaborate on the previous answer, for part a you want to make sure to subtract the crucible weight from the total weight to find the weight of the product itself, and then take the given mass of tin to find the percentages of both tin and oxygen, as they are the only two elements involved in the ...
The SI units themselves don't ascend and descend in orders of 3. I think the orders of 3 just make it a bit more convenient when converting SI units between each other, and so you don't have to memorize and name all the different powers of 10. The only major exception, as Professor Lavelle said, is ...
- Fri Oct 04, 2019 7:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: First Test in Discussion
- Replies: 13
- Views: 263
I like to scan or skim the problems that we need to do and see which ones are similar. Usually problems with consecutive numbers are more or less the same (i.e. E7 and E9), so if they are similar, I tend to only do one. I also tend to go for the problems later on in each Fundamentals chapter (i.e. M...
- Fri Oct 04, 2019 7:51 pm
- Forum: Ideal Gases
- Topic: Reading the textbook [ENDORSED]
- Replies: 134
- Views: 102830
I used these for my AP Chemistry class in high school, but I think they have some college-level chem as well: https://chem.libretexts.org/ https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA https://www.youtube.com/watch?v=IFKnq9QM6_A&list=PLJfwA7_CzYE_qLSXH2hJkpffcrc76NjHJ Hope this helps!