Review Midterm
1) Write the full e- configuration for the following: a) Potassium atom b) Magnesium ion
c) Sulfur atom d) Oxide ion
2) Define the term "isoelectric" and identify the elements that the following ions are
isoelectric with: a) F- b) Ca2+ c) S2- d) Al3+
3) Describe what the periods on the periodic table correspond with as well as the
groups/families.
4) Give an example of each of the following: a) alkali metal b) alkaline earth metal c)
halogen d) noble gas e) transition metal f) lanthanide series inner transition metal g)
actinide series inner transition metal
5) Give an example of a metalloid. What is the property that metalloids have that makes
them useful as computer chips?
6) Compare metals and nonmetals by a) ion formation b) attraction for their valence
electrons
7) Describe how a metal atom forms a cation, using Aluminum as an example.
8) Describe how a nonmetal forms an anion, using Nitrogen as an example
9) Describe the "Octet Rule" = 8 Valence electrons, what are elements looking for when
trying to reach it?
10) Define "ionization energy" and "electronegativity". Discuss how metals and
nonmetals differ in these two properties.
11) Please describe the Periodic Trends that occur across the period and down the group
for the following, giving an explanation for why the trend follows a certain pattern.
a) Atomic radius
b) Ionization energy
c) Electronegativity
12) Be able to differentiate between ionic and covalent bonding (Use video worksheet)
13) Use the criss-cross method of creating chemical formulas for the following ionic
compounds:
Br
N
O
S
SO4
PO4
NO3
CO3
Al
Na
Mg
Fe (II)
Fe (III)
Pb (II)
Pb (IV)
14) Give names to the ionic compounds created above.
15) What is the difference between a polar covalent bond and a nonpolar covalent bond?
16) What is a metallic bond? What does it create?
17) When drawing Lewis structures, what is used to represent chemical bonding between
two atoms?, what is it equal to?
18) What is electron dot notation? Create electron dot notation for the following elements:
Pb (IV), F, S, Al, Na, C, Mg, Fe(II), Fe(III),
19) How many lone pairs do the following compounds have:
Br2 , H2O, NH3, F2
20) What is the octet rule, why do most chemicals want to follow this rule?
21) What element is an exception to the octet rule, which noble gas electron configuration
does it obtain to be able to become stable?
22) What is the difference between a molecular formula and an empirical/chemical
formula? What type of formula do the following compounds have?
C6H6
C2H2
C2H4
C4H8
23) What type of bond do the following elements form based on their electronegativity?
S: 2.58, H: 2.2,
C: 2.55,
O: 3.44,
Cl: 3.16,
Br: 2.96,
Li: 0.98 (Use
video worksheet)
S and H
C and O
Li and Cl
Cl and Br
24) What can you say about the properties of ionic compounds vs. covalent compounds?
(Use video worksheet)
25) How do ionic compounds arrange themselves? (Use video worksheet)
26) What is an isotope?
27) The principles of atomic theory recognized today were conceived by?
28) What is mass number? If carbon isotope consists of 6 protons, 6 electrons, and 7
neutrons, what is its mass number?
29) Experiments with cathode rays led to the discovery of the _________
30) The nucleus of the atom is composed of two subatomic particles, what are they? What
is their charge? What is their mass?
31) What are wavelength and frequency? What is the relationship between both of them?
Be able to perform calculations.
32) Know how to write electron configuration for atoms. Also know how to write noble
gas notation. Ex: Br, Ca, Ba, P
33) Know the letter for the principal quantum number. How many electrons can the first
four energy levels in the periodic table have?
34) Know how to find number of valence electrons for different elements. Ex: P, Cl, Ca,
Mg
35) What is the difference between accuracy and precision?
36) How many figures in a calculation are significant? sum and subtraction vs
multiplication and division
37) Know conversion factors relating mass atomic weight and mole, also avogadro’s
number and mole
38) Know Metric prefixes and Units for SI system
39) Know the three states of matter. How are particles arranged for each of them? Be able
to provide examples.
40) What is density equal to? Be able to do calculation relating density, volume and mass
41) What is the difference between a physical and a chemical change?
42) Know what the physical and chemical properties of matter are.
43) Be able to differentiate between a homogenous and heterogeneous mixture.
44) Pure substances (elements and compounds)
45) what is a hypothesis? What is a theory? How do you tell them apart?
46) What are the steps to scientific method?
47) What are the different fields of chemistry? Recognize examples of each one
48) What is a chemical? What is an atom? What is a compound?
49) Know the differences between basic research, applied research and technological
development
50) What are the intensive and extensive properties of matter?