Chem 101 test 1 Flashcards
a) how many orbitals in n=1 and which sublevels
b) how many electrons in n=1
a) 1,s
b) 2
a) Order of sublevels
b) number of orbitals in each
a) s,p,d,f,g,h,i
b)1,3,5,7,9,11,13
Which direction arrows is emission?
arrows going down
Which direction arrows is absorption?
arrows going up
Calculate energy level of an electron at the n level…
E= -Z^2hR/n^2
Principle Quantum Number
n
- designates level/shell
-primary indicator of electrons energy
-integer values only
Orbital momentum QN
l
-designates orbital shape
-secondary indicator of electron energy
-s,p,d,f etc
- s=0, p=1, d=2, f=3
magnetic orbital QN
ml
-designates orientation of the orbitals in the sublevel
-indicates the number of orbitals in a sublevel
-integer values from -l to l
spin QN
ms
-can only be 1/2 or -1/2
-1/2 if electron pointing upward
- -1/2 if electron pointing downward
From top right to bottom left orbital energy…
increases
from top right to bottom left atomic radius/size…
increases
first ionization energy
the energy required to remove an electron
- electrons farther from the nucleus are easier to remove
- thus larger atoms have lower ie and smaller atoms have higher ie
electronegativity
How badly an atom wants another electron
- the closer the vacancy to the nucleus, the higher the en
- larger atoms have lower en, smaller atoms have higher en
Frequency and wavelength are ________ related
inversely
energy of light and frequency are ________ related
directly
