Search found 20 matches

by Tatiana R Dis 3E
Sat Dec 09, 2017 10:31 am
Forum: Administrative Questions and Class Announcements
Topic: LaKretz Building [ENDORSED]
Replies: 2
Views: 247

Re: LaKretz Building [ENDORSED]

It’s by the bomb shelter. If you walk towards Boelter but keep going it’ll be on your right.
by Tatiana R Dis 3E
Thu Dec 07, 2017 1:35 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Isoelectrinic
Replies: 2
Views: 158

Isoelectrinic

What is this and what elements/ions ARE isoelectrinic with fluoride ion F^-?
by Tatiana R Dis 3E
Wed Nov 29, 2017 10:09 am
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Delocalized pi bond
Replies: 1
Views: 200

Delocalized pi bond

What is a delocalized pi bond and when do they occur?
by Tatiana R Dis 3E
Wed Nov 29, 2017 10:08 am
Forum: Hybridization
Topic: When?
Replies: 2
Views: 181

When?

How do you know when something is hybridized and how do you know which hybrid orbital it is
by Tatiana R Dis 3E
Tue Nov 21, 2017 9:55 pm
Forum: Ideal Gases
Topic: R in PV=nRT [ENDORSED]
Replies: 7
Views: 370

R in PV=nRT [ENDORSED]

What does R represent?
by Tatiana R Dis 3E
Tue Nov 21, 2017 9:53 pm
Forum: Biological Examples
Topic: Coordination Compound
Replies: 2
Views: 239

Coordination Compound

What is a coordination compound and do they relate in anyway to hybridization or are they completely different?
by Tatiana R Dis 3E
Wed Nov 15, 2017 9:11 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: trigonal planar vs. t-shaped
Replies: 5
Views: 461

Re: trigonal planar vs. t-shaped

If it has three reactions of density but one is a lone pair, wouldn’t that be bent?
by Tatiana R Dis 3E
Mon Nov 13, 2017 5:55 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4.5 Shape
Replies: 2
Views: 207

4.5 Shape

How is the shape regional planar if there are only two e- densities? Why is the bond angle 120° and not 180° if there are two lone e- pairs that cancel each other out
by Tatiana R Dis 3E
Wed Nov 08, 2017 10:24 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 3d atoms [ENDORSED]
Replies: 2
Views: 159

3d atoms [ENDORSED]

At what point, when doing electron configurations for the 3D block, can you put 3d before 4s? Is it when you’ve finished the 3d row and started filling the 4p block?
by Tatiana R Dis 3E
Wed Nov 08, 2017 10:18 am
Forum: Lewis Structures
Topic: When to use a double bond or triple bond [ENDORSED]
Replies: 6
Views: 2339

Re: When to use a double bond or triple bond [ENDORSED]

You should start drawing your Lewis structures with a single bond and then fill the octets. If they are full and you still have electrons that need to be added then add a double bond and try to use the electrons that you need to. If you can’t fill the octets due to a lack of electrons then try using...
by Tatiana R Dis 3E
Wed Nov 01, 2017 6:58 pm
Forum: Octet Exceptions
Topic: Octet Exceptions
Replies: 4
Views: 211

Re: Octet Exceptions

Will the extra electrons always be added to the central tom? What if there are two central atoms?
by Tatiana R Dis 3E
Wed Nov 01, 2017 6:54 pm
Forum: Quantum Numbers and The H-Atom
Topic: Which Quantum Number Represents What?
Replies: 3
Views: 312

Which Quantum Number Represents What?

Which quantum numbers represent what? For example, does l represent orientation or velocity?
by Tatiana R Dis 3E
Fri Oct 27, 2017 5:17 pm
Forum: Ionic & Covalent Bonds
Topic: Cations and Anions [ENDORSED]
Replies: 12
Views: 873

Re: Cations and Anions [ENDORSED]

Cations have lost an electron. Because there is now one more proton than electron, it has a positive charge. You can remember this by the t in cation because it's like a positive sign (+). An anion has gained an electron. Because it now has one more electron than proton, it has a negative charge.
by Tatiana R Dis 3E
Fri Oct 27, 2017 5:13 pm
Forum: Lewis Structures
Topic: Lengths of Bonds
Replies: 2
Views: 138

Lengths of Bonds

If a molecule such as C2H2 has one triple bond between the two Carbons and single bonds with the two Hydrogens. Is the triple bond shorter than the single bonds? I was confused by resonance, but there can only be one possible Lewis structure for C2H2 so there isn't resonance, right?
by Tatiana R Dis 3E
Fri Oct 20, 2017 5:47 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 3d And 4s Orbital Energy Levels [ENDORSED]
Replies: 3
Views: 277

Re: 3d And 4s Orbital Energy Levels [ENDORSED]

I'm confused about this as well. Would the configuration for Ti (Titanium) be Ti: [Ar] 3d2 4s2?
by Tatiana R Dis 3E
Fri Oct 20, 2017 5:43 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: N Quantum Number [ENDORSED]
Replies: 3
Views: 183

N Quantum Number [ENDORSED]

Does the n quantum number represent the number before the letter that represents the shape? For example, n=2 is 2s or 2p orbital?
by Tatiana R Dis 3E
Fri Oct 13, 2017 6:10 pm
Forum: DeBroglie Equation
Topic: Deriving the function [ENDORSED]
Replies: 5
Views: 392

Re: Deriving the function [ENDORSED]

When is it necessary to use this functions again?
by Tatiana R Dis 3E
Fri Oct 13, 2017 6:08 pm
Forum: Properties of Electrons
Topic: Wave Properties of Electrons [ENDORSED]
Replies: 4
Views: 281

Re: Wave Properties of Electrons [ENDORSED]

X-Rays show diffraction as they pass through a crystal, because electrons do the same you can relate them to a wave such as x-rays.
by Tatiana R Dis 3E
Fri Oct 13, 2017 6:06 pm
Forum: Einstein Equation
Topic: General Question about Joules [ENDORSED]
Replies: 7
Views: 588

Re: General Question about Joules [ENDORSED]

A joule is defined as: the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th (60^2) of a watt-hour.
by Tatiana R Dis 3E
Fri Oct 13, 2017 6:02 pm
Forum: Limiting Reactant Calculations
Topic: Reactant vs. Reagent [ENDORSED]
Replies: 23
Views: 6821

Re: Reactant vs. Reagent [ENDORSED]

The two words can be interchangeable and you shouldn't get marked off for using one or the other unless specified.

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