SCH3U Unit 1 Portfolio
Name: ____________________
1. Why does electronegativity increase across periods and decrease down a group in the periodic
table? You can use diagrams if you like. ( /2KU)
2. Order the following elements in terms of increasing electron affinity: Br, Fe, Na, Ne, F. (
3.Explain what an isotope is using an example. (
4. Name the following compounds (
/2KU)
/2KU)
/4KU):
a) NI3 ______________________
b) Cl2O4 ______________________
c) Fe2NO3 ____________________
d) Na3N _______________________
5. Write the formulas for the following ( /3 KU):
a) zinc sulfide
b) copper (II) chlorate
_________________________ ________________________
c) nitrogen dioxide
__________________
6. Give the chemical name for the following compounds. Explain how you can make sure that you do not
mix them up.: (
/3KU,
/3A)
Mg3(PO4)2
Mg3P2
Mg3(PO4)2
_______________________
______________________
_________________
7. Name and explain one difference and one similarity between the atomic models of Thompson and
Bohr. ( /2A)
8. Circle the atom having the:
(
/A4)
a) largest ionization energy
S
Kr
Ar
Se
b) largest electron affinity
Ga
P
K
Cl
d) largest electronegativity
Li
B
N
Na
e) smallest atomic radius
Rb
Fe
I
F
9. Draw the Bohr and a Lewis diagrams for Ca2+ and for P3-. (
/2A)
10. Using Lewis structures show one compound that could form between S and O (show the movement
of electrons) and indicate what the chemical formula is. (
/2A)
11. Examine the following 1st, 2nd, and 3rd ionization energies (measured in electron volts-eV).
1st
(eV)
5.139
7.646
21.564
Element X
Element Y
Element Z
2nd
(eV)
47.286
15.035
40.962
3rd
(eV)
71.64
80.143
63.45
Element X most likely belongs to which group of the periodic table? Explain your decision using your
knowledge of ionization energy. (
/2TI)
12. Come up with a flowchart for the naming of acids (
(
/16KU,
/13A,
/5TI)
/3TI)
SCH3U
Name: ____________________
Unit 1 Portfolio
Due: Monday, October 15, 2012 (no late portfolios will be accepted)
Your portfolio will be evaluated based on the following rubric:
Category
Knowledge
demonstrates
thorough
understanding of
concepts,
principles, laws and
theories
Application
shows thorough
understanding of
connections in
familiar and
unfamiliar contexts
Thinking
applies all of
almost all of the
skills and
strategies of
scientific inquiry
LEVEL 4
100 – 80 %
LEVEL 2
69 – 60 %
LEVEL 1
59 – 50 %
Demonstrates
thorough
understanding of
concepts.
Demonstrates
considerable
understanding of
concepts.
Demonstrates
some
understanding
of concepts.
Demonstrates
limited
understanding of
concepts.
Demonstrates
thorough
understanding of
connections in
familiar and
unfamiliar
contexts.
Always or almost
always provides
detailed answers
that go into depth
Shows
considerable
understanding of
connections in
familiar and some
unfamiliar
contexts.
Often provides
detailed answers
that go into
depth
Shows some
understanding
of connections
in familiar and
some unfamiliar
contexts.
Shows limited
understanding of
connections in
familiar and some
unfamiliar
contexts.
Some answers
have more
detail than
required.
Answers are
missing and have no
detail.
The portfolio is
mostly complete,
in order, few
spelling mistakes
are made.
The portfolio is
somewhat
complete, some
items are
missing, some
spelling
mistakes are
made.
The portfolio is
somewhat
complete, items are
missing, spelling
mistakes are made.
Communication The portfolio is
communicates
information and
ideas with a high
degree of clarity
and precision
LEVEL 3
79 – 70 %
complete,
thoroughly
organized, no
spelling mistakes
are made.