ranyai12
What is the atom for the electron configuration [Ne]3s1 3p1?
is it Mg or Ne-? and just to make sure,, this is an excited state right?
Delete
Share
This Question is Closed
ranyai12
Best Response
You've already chosen the best response.
0
@eseidl
eseidl
Best Response
You've already chosen the best response.
2
Mg, excited state.
ranyai12
Best Response
You've already chosen the best response.
0
can u please explain?
Rosie123
Best Response
You've already chosen the best response.
0
@eseidl please help on my question
Rosie123
Best Response
You've already chosen the best response.
0
after this ?
eseidl
Best Response
You've already chosen the best response.
2
Yeah. Ok your electron "orbital" filling rules are 1s,2s,2p,3s,3p...
eseidl
Best Response
You've already chosen the best response.
2
s orbitals can take 2 electrons max. P orbitals can take 6.
ranyai12
Best Response
You've already chosen the best response.
0
but why isnt it Ne-?
eseidl
Best Response
You've already chosen the best response.
2
We fill 3s BEFORE 3p. Since 3s only has one electron in the s orbital, but also has one in the p orbital, it is an excited state.
ranyai12
Best Response
You've already chosen the best response.
0
oh it it because itll give it an extra electron?
ranyai12
Best Response
You've already chosen the best response.
0
is it*
eseidl
Best Response
You've already chosen the best response.
2
Now why is it Mg...well, Mg is atomic number 12. So, the neutral atom has 12 electrons. We get: \[1s^2,2s^2,2p^63s^2\]for the neutral atom. But if we exited the atom, bumping 1 electron into the 3p orbital, we have a (slightly) excited Mg atom.
ranyai12
Best Response
You've already chosen the best response.
0
oh ok thanks!!!
eseidl
Best Response
You've already chosen the best response.
2
Why isn't it Ne-...
eseidl
Best Response
You've already chosen the best response.
2
well, Ne- has 11 electrons. We get:\[1s^2,2s^2,2p^63s^1\]Not enough electrons to be Ne-
ranyai12
Best Response
You've already chosen the best response.
0
oh ok! thanks again!
eseidl
Best Response
You've already chosen the best response.
2
It could be an exited state of \[Ne^{-2}\] though....
eseidl
Best Response
You've already chosen the best response.
2
But yeah, I think that narrows it down for you :)