CHEMISTRY COMMUNITY

Xinye_Jiang_1A

Since the central atom has lone pairs of e-. why it is said in book that I3 is linear?
p.s I know it is not in the final, still i want to know why

Xinye_Jiang_1A

It is said that a e- pair acceptor is a Lewis acid. Why Ag+ accepts e- instead of donate them to form an octet?

Xinye_Jiang_1A

PriscillaMariscal_3F wrote:If there is a linear molecule, and the dipole moments for the two outside atoms are facing towards the central atom, would the molecule be polar or nonpolar?

non polar i think since they cancel.

Xinye_Jiang_1A

Will the unpaired e- always be on the atom with relatively lower electronegativity?

Xinye_Jiang_1A

TA told me the atom that has the highest electronegativity in the anion would carry the negative charge, like the oxygen in IO3- carries the -1 charge. Whys that? How can we determine which atom has the highest electronegativity? Will the info be given?

Xinye_Jiang_1A

T is given by Kelvin right?

Xinye_Jiang_1A

Having asked one TA, I know that 2 photons with enough energy will eject 2 electrons from 2 atoms. Since the book only mentions the 1 photon per 1 e- relationship that 2 photon will interact with 2 electrons if having enough energy, I wonder why those 2 ejected electrons must come from 2 atoms but ...

Xinye_Jiang_1A

You are right about your inference on question 1. Your second question is a little confusing. When writing Ca and K configurations, d-block doesn't play a role. However, if what you were asking was for the configurations after Ca on the d-block, then you are right except for the configurations for ...

Xinye_Jiang_1A

I think Dr Lavelle said in class that the extra 4 valence electrons of sulfur come from the atom's subshell 3d, but the configuration of sulfur atom is 1s2 2s2 2p6 3s2 3p4. So I wonder where those electrons come from, and how can we know the number of valence electrons of sulfur is 10 not 6 in the c...

Xinye_Jiang_1A

I didn't learn this part of chem in high school so the questions might be a bit stupid :)
1) elements in the third group in periodic table all fill (n-1)d1 then (n)s2 at last?
2) As for K and Ca elements, E 4s < E 3d, for Rb and Sr, E 5s < E 4d, and so on?

Xinye_Jiang_1A

Having asked one TA, I know that 2 photons with enough energy will eject 2 electrons from 2 atoms. Since the book only mentions the 1 photon per 1 e- relationship that 2 photon will interact with 2 electrons if having enough energy, I wonder why those 2 ejected electrons must come from 2 atoms but n...

Xinye_Jiang_1A

Additionally, the order that the respective elements are given in a molecular formula gives insight on the specific formation that the atoms are placed in. Hi Paul, could you talk a little bit more about what you mean by "the specific formation that the atoms are placed in"? I thought the...

Xinye_Jiang_1A

Well I've learnt this in physics class 3 years ago so I'm not sure I'm right on this, but I think some ground states of e- in atoms might be at N=2,3,etc. It depends on which electron in which atom we're studying at. About "excited", in the case of H atom: "A hydrogen atom with excess...

Xinye_Jiang_1A

Since the work function is given by J/mol, is it possible that we need to devide 1.506*10^5 by 6.022*20^23 to get the work function for one electron per atom? Hope the image of the worked out problem attached helps. I'll walk through my brain jumble: 1) To solve for the KE of the ejected electron, u...

Xinye_Jiang_1A

Without knowing the structures of the organic chemicals, how can we write the molecular formulas correctly? For example, for problem F15, how can I know the formula should be C16H13ClN2O instead of C16H13N2ClO?

CHEMISTRY COMMUNITY

Search found 15 matches

Why I3 is linear?

Why Ag+ is a Lewis acid not base?

Re: Polar and Non-polar bond

Re: Exercise 3.59 - Question on Radicals

Which atom would carry the formal charge

Re: Concentration vs. Pressure?

Re: Why 2 photons removes 2 e- from 2 atoms not 1 atom?

Re: questions regarding e- configurations

Where do the extra valence e- come from in S of SO4 2-

questions regarding e- configurations

Why 2 photons removes 2 e- from 2 atoms not 1 atom?

Re: How can we write the molecular formulas of some organic chemicals?

Re: Clarification on "ground state"

Re: energy required to remove an electron [ENDORSED]

How can we write the molecular formulas of some organic chemicals?