All Questions
9
questions
3
votes
1
answer
73
views
Why are Mo(NR2)3 complexes isolobal with the nitrogen atom in N2
In a Molybdenum complex of the form Mo(NR2)3, the Mo is in the oxidation state of +3, leaving it with 3 d electrons. When combined with an additional 2*3 electrons from the ligands, this leaves it ...
- 422
-1
votes
1
answer
276
views
What does valence electron mean (in the context of spdf orbitals)?
For a little bit of context, my background is in physics and my understanding of chemistry doesn't go past, say, middle school level. Recently, I decided to self-study chemistry and picked up "...
- 169
1
vote
1
answer
463
views
Electron configuration of iron(I) cation
What is the electron configuration of $\ce{Fe+}$ cation?
\begin{align}
\ce{Fe+} &\!:~ [\ce{Ar}]\mathrm{(3d)^6(4s)^1}\label{chm:1}\tag{1}\\
\ce{Fe+} &\!:~ [\ce{Ar}]\mathrm{(3d)^7(4s)^0}\label{...
- 11
1
vote
1
answer
79
views
Alkali metals chemistry [closed]
Ok my understanding of the electronic structure of atoms could be wrong but this is why I don't understand:Why alkali metals are so much electropositive.
Some high school professor in chemistry would ...
- 39
7
votes
4
answers
3k
views
How can a neutral atom attract electrons when it's supposed to have zero charge?
A neutral atom is an atom with an equal number of protons and electrons
We know the force of attraction between the proton and electron is equal
and assuming that:
one proton's positive charge ...
- 639
0
votes
0
answers
19
views
Electron shells and subshells energies [duplicate]
According to what i learned in university, the energy of orbitals increases when the principal quantum number n increases. Also, in a given shell, s orbitals have lower energy than p orbitals which ...
- 187
-2
votes
1
answer
5k
views
Half-Filled Shells and Stability explanation [duplicate]
I am reading a book about Advanced Chemistry, and it is discussing the subject of half-filled orbitals.
The book notes that Chromium has an electron structure of $1s^2 2s^2 2p^63s^23p^63d^54s^1$
...
- 1,230
6
votes
2
answers
8k
views
Energy of electrons in the same subshell
So I have this quote from wikia (it's similar to my lecture pdf file) but I don't fully understand the statement
Although it is commonly stated that all the electrons in a shell have the same ...
- 383
0
votes
2
answers
42k
views
What is the number of unpaired electrons in Fe 2+? [closed]
Specifically, how can I find out the number of unpaired electrons in any ion?
- 147