All Things Periodic Table
Aww we're bonding <3
Say my name (or compound)
Lewis needs an ego check
VSEPR? I hardly know her!
100
What is the difference between electron affinity and electronegativity?
Electron Affinity: the amount of energy released when an atom gains an electron
Electronegativity: the attraction for electrons WITHIN a chemical bond
100
Define what anions and cations are
Anions: electrons are added, making the compound negatively charged
Cations: electrons are removed, making the compound positively charged
100
Write the name for the following compound: IF7
Iodine Heptafluoride
100
Draw the lewis structure for BeCl2
Be happy with two bonds, so no lone pairs on Be
100
What is the electron and molecular geometry for an element with 6 electron dense areas and 1 lone pair?
Octahedral, Square Pyramidal
200
What is the Effective Nuclear Charge (Zeff) for the following element:
Iodine (I)
Iodine: 53-46 = 7
200
Classify the following bonds as either ionic, polar covalent, or nonpolar covalent
Ca-O
Be-Si
B-Br
Ca-O: 3.5-1.0=2.5 ionic
Be-Si: 1.8-1.5: 0.3 nonpolar
B-Br: 2.0-2.8: 0.8 polar covalent
200
What is the name of these 3 compounds?
NH4NO3
Ag3(PO4)2
PCl4
Ammonium Nitrate
Silver (II) Phosphate
Phosphorus Tetrachloride
200
Draw the lewis structure for CH3OH
Oxygen connected to the carbon, last hydrogen connected to the oxygen
200
Draw the correct lewis structure for ClF3 and determine the following:
Both geometries, hybridization, and polarity
Trigonal Bipyramidal, T-Shaped, sp3d, polar
300
What period 3 element has the following ionization energies:
IE1 = 790
IE2 = 1600
IE3 = 3200
IE4 = 4400
IE5 = 16100
IE6 = 19800
Silicon (Si)
300
Name at least 2 elements that break the octet rule other than hydrogen
Incomplete: Boron and beryllium...
Expanded: Phosphorus, sulfur, chlorine, bromine, iodine, xenon, arsenic, selenium...
300
Write the 10 prefixes you are expected to memorize
mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca
300
Draw the lewis structure for SO3
Double bonds on each sulfur
300
How many sigma (σ) bonds and pi (π) bonds are there in the benzene molecule?
12 sigma bonds
3 pi bonds
400
Rank the following elements in terms of increasing atomic radius
Sr, Mg, Ca
Sb, Te, I
Mg < Ca < Sr
I < Te < Sb
400
Classify the following compounds as either ionic or molecular:
CO2
NiN2
CaF2
B2O6
CO2 molecular
NiN2 ionic
CaF2 ionic
B2O6 molecular
400
Write the compound for the following name:
Cobalt (III) Sulfate
CO2(SO4)3
400
What is the best resonance structure for SNO-?
400
This is the structure of retinol or vitamin A1. Determine the hybridization of the oxygen atom and the second nearest carbon to the oxygen atom.
Oxygen: sp3
Carbon: sp2
500
What is the trend for an increase in the following: atomic radius, ionization energy, and electronegativity?
500
Determine whether the following ions are paramagnetic or diamagnetic:
Cu+
Br+
Zn2+
Cu+ diamagnetic
Br+ paramagnetic
Zn2+ diamagnetic
500
Write the correct formula and charges for the following polyatomic ions:
Nitrate, sulfate, phosphate, hydroxide, acetate, carbonate, bicarbonate, ammonium, and cyanide.
NO3-, SO42-, PO43-, OH-, CH3COO-, CO32-, HCO3-, NH4+, CN-
500
Draw the most correct lewis structure for CSN-
C in the middle proves lowest number of atoms with nonzero formal charges and places least electronegative atom in center and negative charge on most electronegative atom
500
Draw the correct lewis structure for H2Se and determine the following:
Both geometries, hybridization, bond angle, and polarity
Tetrahedral, bent, sp3, >109.5o, polar