Unit 1
Unit 2 and 3
Unit 4
Unit 5
Unit 6
100

How many electrons and protons would fluorine have if it had a negative 1 charge?

F-1 = 9 protons and 10 electrons

100
Define Electronegativity?
Electronegativity is the measure of an atoms ability to attract an electron.
100
Is water polar or non-polar?
Water is polar
100
What is the weakest intermolecular force?
London Dispersion Force
100
What is the chemical name of MgCl2?
magnesium chloride
200
What does an atom become when the number of protons is changed?
It becomes a new element!
200
What is the Heisenberg Uncertainty Principle?
It is impossible to know both speed and location of an electron at the same time.
200
What are the 4 types of bonding that we have discussed?
Ionic bond, polar covalent bond, non-polar covalent bond, and metallic bonds.
200
What is the main intermolecular force present in water?
Hydrogen Bonding
200
What is the name of Fe2O3?
iron(III) oxide
300
What element is [Ne] 3s2 3p3
Phosphorus, P
300
Which element has the largest atomic radii?
Francium, Fr
300
Based on the Lewis structure on the board: is CH3Cl polar or non polar?
It is polar: different bonds
300
Put these substances in order of increasing melting points? Iron (Fe), Water (H2O), Carbon Dioxide (CO2)
Carbon Dioxide (CO2), Water (H2O), Iron (Fe)
300
What is the empirical formula of C12H22O12?
C6H11O6
400
Which Isotope would be most abundant (Mg-24, Mg-25, or Mg-26)?
Mg-24. This isotopes mass is most closely related to the periodic table mass of 24.3.
400
How does an atom emit light? (4 steps)
1. Energy input into electron 2. Electron moves to higher energy level 3. Energy is released in the form of a photon 4. The electron moves down in energy level
400
Draw the Lewis structure for HCN
H:C:::N:
400
Why can different materials exist in different states of matter at the same temperature?
They have different intermolecular forces!
400
What is the chemical name of P4O10?
tetraphosphorus decoxide
500
An Isotope has a half-life of 2 years. How much of the isotope would be left after 8 years?
By starting at 100%, then 50%, then 25%, then 12.5%, and then 6.25%. TIME follows at 0, then 2 yrs, then 4 yrs, then 6 yrs, then 8 yrs.
500
Place the elements 8O, 5B, and 9F in order of increasing electronegativity?
B, O, F
500
Name the alkane that is drawn on the board.
2- methyl 3 ethyl heptane
500
List the intermolecular forces (including metallic bonds) in order of decreasing boiling points.
Metallic bonds, electrostatic forces, hydrogen bonding, dipole-dipole, London dispersion
500
What is the empirical formula of a compound containing 5.88% H and 94.12%O?
% to mass, mass to mole, divide by smallest, make all whole, HO
M
e
n
u