chem Flashcards
n=4
l,ml, total orbitals,electrons
l=0,1,2,3
ml=0,-+1,-+2,-+3,
16 (4 squared)
32 electrons
n=5
l,ml, total orbitals,electrons
l=0,1,2,3,4
ml=0,-+1,-+2,-+3,+-4
25 (5 squared) orbitals
50 electrons
How does the radial probability plot and electron probability distribution look like
Goes up (1/4) and back down
how does the p orbitals look like?
two lobes and nucleus is on a plane that divides the lobes
how does d orbitals look like?
four lobes and one of them (dz2) has two and a ring
What are the 3 known electron configuaration anomolies
Cr, Cu, Mo
Chromium, Copper, Molybednum
diamagnetism
all of electrons are paired
paramagnetism
atoms with unpaired electrons
What 2 things make an atom bigger
NOT THE TREND, THE REASON
decreasing ZEFF, increasing electron electron repulsion making e- cloud bigger
What groups are the anomolies of IE in?
Group 3, 6
What groups is electron affinity +
and why
2,5 (just nitrogen), 8
energy must be added to add an additional electron
electronegativity of C,N,O,F (2nd period)
C: 2.5
N:3.0
O:3.5
F:4.0
Electronegativity of P, S, Cl (3rd period)
P: 2.2
S:2.6
Cl:3.0
Electronegativity of Br, I (4th and 5th halogens)
Br: 2.8
I:2.5
Ionic Compounds
- physical state
- melting and boiling point
- solubility in water
- Electrical Conductivity
- Exist as solids at room temp
- high melting and boiling
- dissolve in water
- do not conduct electricity in wolid state, does conduct in molten state
covalen compounds
- physical state
- melting and boiling point
- solubility in water
- Electrical Conductivity
- exist as gases, liquids, solids at room temp,
- low melting and boiling,
- do not dissolve in water,
- do not conduct electricity
metallic
- physical state
- melting and boiling point
- solubility in water
- Electrical Conductivity
- exist as solids at room temp
- high melting and boiling temp
- do not dissolve in water
- good conductors of electricity in solid/molten
Zinc charge
Zn2+
Ammonium charge
NH4+
nitrate
no3-
sulfate
so42-
phosphate!
po4 3-
Carbonate
Co3 2-
Perchlorate (4)
clo4-
Acetate
C2H3O2
C2H3O2-
Hypovalent molecules
Boron, beryllium, alluminum
What is the most repulsive
Lone pair lone pair repulsions
What is the least repulsive
Bond pair Bond pair repulsions
Trigonal planar
makes what? SN?
SN=3, bent
tetrahedral
SN=4 trigonal pyramidal, bemt
trigonal byprimidal
SN=5 See Saw, T shape, Linear
Octahedral
SN=6 Square pyramidal, square planar 90 degrees
Polar bonds have
Dipole moments
Sigma bond
head to head overlap ON internuclear axis
Pi bonds
Side to side interlaps perpendicular to internuclear axis
