CHEMISTRY COMMUNITY

Sollie1G

what is the difference between something being ionic or dipole? I found this explanation: "An ion-dipole force is a force between an ion and a polar molecule. A hydrogen bond is a dipole-dipole force and is an attraction between a slightly positive hydrogen on one molecule and a slightly negat...

Sollie1G

What kind of dogs do chemists have?

Laboratory retrievers

Sollie1G

If the energy of the photon is not more than or equal to the threshold energy, or energy required to eject electrons from the metal surface, than it isn't possible for the beam hitting the metal to result in electron ejection.

Sollie1G

This value is considered neutral—neither acidic or basic. Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic.

Sollie1G

Yes!! All atoms want eight valence electrons. I think the only exceptions are period 3 and below because they can have expanded octets.

Sollie1G

Helium walks into a bar,
The bar tender says "We don't serve noble gasses in here."
Helium doesn't react.

Sollie1G

This is what I found:

In chemistry, a formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity.

Sollie1G

It is usually the most electronegative, C is one of the more common ones!!

Sollie1G

Q: What do you do with a sick chemist?
A: If you can't helium, and you can't curium, then you might as well barium.

Sollie1G

Have you heard the one about a chemist who was reading a book about helium?
He just couldn't put it down.

Sollie1G

I think in his email he listed the ones still going on this week, I'm almost positive it still is and also there is a review session this afternoon!

Sollie1G

A proton and neuron are walking down the street.

Proton: Wait, I lost an electron. Will you help me find it?
Neuron: Are you sure?
Proton: Yeah, I'm positive!

Sollie1G

Hi!! I am out of state this weekend for my little sister's graduation. Sadly, I knew I would be missing review sessions. I was wondering if there would be worksheets or note posted anywhere from each review session that specifically covers material from one to multiple chapters/topics. Thank you!! A...

Sollie1G

Once, I told a chemistry joke...

there was no reaction

Sollie1G

I found this answer: A coordination complex is the product of a Lewis acid-base reaction in which neutral molecules or anions (called ligands) bond to a central metal atom (or ion) by coordinate covalent bonds. Ligands are Lewis bases - they contain at least one pair of electrons to donate to a meta...

Sollie1G

This video might help: https://www.youtube.com/watch?v=4xl0BD-tMeA I found this online: "In chemistry, orbital hybridisation (or hybridization) is the concept of mixing atomic orbitals into new hybrid orbitals (with different energies, shapes, etc., than the component atomic orbitals) suitable ...

Sollie1G

That was sodium funny

I slapped my neon that one!

Sollie1G

Q: If H2O is the formula for water, what is the formula for ice?
A: H2O cubed.

Sollie1G

I think it would just be dependent on the outer shells of the atoms involved, so the atom left with one unpaired electron as opposed to other atoms involved with all valence electrons?

Sollie1G

A photon checks into a hotel and they ask if he has any luggage.

"No, I'm traveling light."

Sollie1G

An atom can have up to eight electrons in its outermost shell. Noble gases (Helium, Neon, Argon, etc) have full shells; or eight valence electrons, and because they have the maximum possible amount of valence electrons in their outermost shells, they are the most stable atoms. To become stable, an a...

Sollie1G

I tell bad chemistry jokes because all the good ones Argon :(

Sollie1G

This is the answer I found: The atomic number for Calcium is 20, so you have 20 electrons to worry about for the configuration. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 But, for a shorter notation, you can use Argon(atomic number=18), a noble gas with a full outer shell, and add the 4s^2 to bring you to Calcium.

Sollie1G

Why did the white bear dissolve in water?

Because it was polar

Sollie1G

The other day, a girl in a study session mentioned that she new a song that applied to the material we're learning, something with the equations I believe. Does anyone know any! I'm curious to see if there is something helpful to memorize that is also cute and fun

Sollie1G

Hannah, are you able to email me the link as well? I'm having some difficulty with it.

sollieclrk744@gmail.com. Thank you!!

Sollie1G

I found this but I'm not sure if it is enough to answer your question "The initial energy state is 1 (the only energy state the hydrogen atom can have) and the inverse of 1 is 1. The difference between 1 and 0 is 1. ... This is the first ionization energy of the hydrogen atom. Multiply the ioni...

Sollie1G

The last 14A class did a weekly study group that met on the hill, is anyone interested in setting up a few for this quarter? i know that we have plenty of step-ups and workshops as well, but this might also be helpful!

Sollie1G

If Avogadro calls, tell him to leave his number

Sollie1G

When will we be going over sig figs?

Sollie1G

On his second outline on the website, he discusses what we should know after learning this next material! https://lavelle.chem.ucla.edu/wp-content/supporting-files/Chem14A/Chem14A_Outline2_The_Quantum_World.pdf For example: "Name and explain the relationship of each of the four s-, p-, and d-or...

CHEMISTRY COMMUNITY

Search found 31 matches

Re: ionic character

Re: Post All Chemistry Jokes Here

Re: threshold energy

Re: Acid Rain

Re: Octet Rule

Re: Post All Chemistry Jokes Here

Re: Formal Charge Exponent

Re: lewis structure

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Sunday Step-Up Session

Re: Post All Chemistry Jokes Here

Review Sessions this weekend

Re: Post All Chemistry Jokes Here

Re: Coordination compounds

Re: Hybridization

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Charge on Molecule [ENDORSED]

Re: Post All Chemistry Jokes Here

Re: Octet

Re: Post All Chemistry Jokes Here

Re: Coefficients in electron configurations [ENDORSED]

Re: Post All Chemistry Jokes Here

Tools for remembering equations

Re: Study Group

Re: avogadro's number

Study Group

Re: Post All Chemistry Jokes Here

Re: Significant figures

Re: Data to memorize for this chapter [ENDORSED]