TOC # _______ North Smithfield High School
REVIEW-Unit 1 Assessment
Name: __________________________________
Period: ____
Date: ___/___/___
ASSESSMENT OVERVIEW
Section 1: Key Terms – Match the definition of the key term to the correct definition.
Section 2: Knowledge of Content – Choose the most correct response to best answer the question (multiple
choice)
Section 3: Application of Content & Skill Mastery
• Structure of the Atom/ Role of Electrons in Atoms
• Building Atoms (determining # p+, n0, e-)
• AAM
• Exploring the PT
• Short Answer (4 Q’s)
The following questions are meant to review your knowledge of the concepts and skills throughout the unit.
It is NOT an exhaustive review, meaning that beyond completion of the review, study of notes, practice, and
HW prior to the assessment will best prepare you for success.
Review Part 1: Key Terms-Use your notes and textbook to define the following key terms.
nucleus
electron cloud
energy level atomic mass
atomic mass unit
cation
anion
periodic law period
metalloid/semiconductor
alkali metals alkaline earth metals
proton
periodic table
mass number
average atomic mass
group
valence shell
transition metals
neutron
electron
element
atomic number
isotope
ion
percent abundance
metal
nonmetal
valence electrons
halogens
noble gases
Review Part 2: Knowledge of Content
1. What are the major regions of the atom?
2. What is the difference between protons, neutrons, and electrons? (describe their locations, charges, and
relative masses)
3. What is the overall charge of an atom? How is it determined?
4. What are the rules for writing element symbols, and why are element symbols important?
5. What does the “faceplate” on the periodic table indicate?
6. What is the atomic number and what does it tell us about atoms?
7. What is the purpose of neutrons in atoms, and why are they important?
8. How do we calculate the mass of individual atoms?
9. What is an isotope, and how do we distinguish between isotopes?
10. How do we determine the number of protons, neutrons, and electrons for a neutral atom?
11. What are ions and how are they formed?
12. How do we determine the number of protons, neutrons, and electrons for an ion?
13. What is meant by atomic mass of an element?
14. How is the atomic mass of an element calculated?
15. How did Mendeleev arrange the elements in his periodic table?
16. How are elements arranged in the modern periodic table?
17. What are the three main categories of elements?
18. Why do elements within a group on the periodic table have similar chemical properties?
19. Why are some elements more reactive than other elements?
20. What does each family on the periodic table have in common?
21. What are the families of metals? Describe shared properties for each of these families.
22. What are some of the families of nonmetals? Describe shared properties for each of these families.
Review Part 3: Application of Content & Skill Mastery
1. Draw a Bohr model of the structure of an atom with 17 protons, 18 neutrons, and 17 electrons. Include and
label all regions and subatomic particles of the atom.
a. Where is the majority of the mass of chlorine located?
b. Describe where the positive and negative charges are located in the chlorine atom. (What regions and
why?)
c. Does this atom of chlorine have an overall charge? Explain.
d. How many energy levels does chlorine have?
e. How many valence electrons does chlorine have?
f. Is chlorine a stable or reactive atom? Explain.
g. Draw the ion of chlorine. Write the nuclear symbol for the chlorine ion.
h. Is chlorine a metal, nonmetal, or semiconductor/metalloid?
i. What group is chlorine in?
j. What period is chlorine in?
k. What family is chlorine in? (Provide the family name.)
2. Use the diagrams below to answer the following Q’s.
Diagram A
Diagram B
Diagram C
6 protons
6 neutrons
6 electrons
6 protons
7 neutrons
6 electrons
6 protons
8 protons
6 electrons
a. What elements are represented in the diagrams (provide hyphen notations to identify)?
b. Compare and contrast the atoms shown in the diagrams. How are the atoms the same? How are the
atoms different?
3. Complete the table below. Unless otherwise indicated, assume atoms to be neutral.
Atomic
number
# p+
# n0
# e-
Mass
Number
6
53
92
Boron 54
26
30
Hyphen notation
127
24
238
Nuclear
Symbol
4. What is the identity of the element with two isotopes; the first isotope having an isotopic mass of 120.90amu
and percent abundance of 57.21, and the second isotope having an isotopic mass of 122.90amu and relative
abundance of 42.79?
5. Which isotope is more abundant?
c. Write down the atomic mass of the element.
d. Circle the most abundant isotope.
e. Explain your choices.
Carbon atomic mass:
Neon atomic mass:
_______________
_______________
C-12
Ne-20
C-14
Ne-21
6. What do all the elements in a vertical column on the periodic table have in common?
7. What do all the elements in a horizontal row on the periodic table have in common?
8. If the element ununoctium is ever synthesized, it will be located directly under radon, xenon and krypton on
the periodic table. What would ununoctium’s atomic number be? Predict ununoctium’s properties.
9. Explain why magnesium forms ions with the formula Mg2+ and not Mg+ or Mg-.
10. Why are the noble gases (normally) unreactive?
11. What is the periodic law? How is the periodic law demonstrated in the alkali metals? Explain your answer
using at least two specific examples.