Question

Represent electron arrangements using electron configuration, orbital notation, shorthand notation, and Lewis dot notation.
Describe the quantum model of an atom in terms of energy levels, sublevels, and orbitals.

Answer 1

@aaronq

Answer 2

So, for the first question, i'll illustrate with an example.

s orbital fits 2 electrons
p orbital fits 6
d orbital fits 10
f orbital fits 14

I'll do a simple example:
Mg has 12 electrons using the aufbau principle (electrons are filled from lower to higher orbitals, see attachment)

electron configuration: \(\large 1s^{\color{red}{2}}2s^{\color{red}{2}}2p^{\color{red}{6}}3s^{\color{red}{2}}\)

the red numbers represent the number or electrons, the letters (s,p) represent the orbital, angular quantum number (or "sub level"). the number \((\large\color{green}1s^x)\) (in green here) is the principal quantum number, or "level".

Short hand notation is similar, you find the nearest noble gas by going backwards (numerically) so for Mg the nearest noble gas is Ne. so its short hand notation is:

\([He]3s^2\)

Answer 3

for the second part you should watch this vid. http://www.youtube.com/watch?v=accyCUzasa0 because it's much easier if you actually see images with the words. After ask me questions if you need me to verify anything.

Answer 4

Thank you so much!

Answer 5

no problem ! let me know if something's not clear