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WorksheetsUnit 1- Atoms & Periodic Table
Total questions: 81
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
True or False? Neutrons have a negative charge
a)
True
b)
False
2.
An atom's mass number equals the number of...
a)
protons plus the number of electrons
b)
protons plus the number of neutrons
c)
protons
d)
neutrons
3.
Which statement about the atomic nucleus is correct?
a)
The nucleus is made of protons and neutrons and has a negative charge
b)
The nucleus is made of protons and neutrons and has a positive charge
c)
The nucleus is made of electrons and has a positive charge
d)
The nucleus is made of electrons and has a negative charge
4.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
5.
Atoms have no electric charge because they...
a)
have an equal number of charged and non charged particles
b)
have neutrons in their nuclei
c)
have an equal number of electrons and protons
d)
have an equal number of neutrons and protons
6.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
7.
The symbol for Carbon is
a)
6
b)
12.011
c)
C
d)
Ca
8.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
9.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
10.
What are the 3 subatomic particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
11.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
12.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
13.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
14.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
15.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
16.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
17.
The atoms along the staircase are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
18.
What section is the least reactive?
a)
yellow
b)
red
c)
dark blue
d)
orange
19.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
20.
Which two families on the periodic table react aggressively?
a)
noble gases and alkali metals
b)
alkali metals and halogens
c)
noble gases and halogens
d)
metals and halogens
21.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
22.
Which lab tool might you use to measure the volume of a liquid?
a)
electric scale
b)
bunsen burner
c)
test tube
d)
graduated cylinder
23.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
24.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
25.
The amount of space something takes up
a)
density
b)
volume
c)
mass
d)
matter
26.
The ability of a metal to allow heat or electricity to pass through it.
a)
conductivity
b)
insulator
c)
mass
d)
density
27.
You discovered in the lab that silicon is:
a)
metal
b)
metalloid
c)
nonmetal
28.
Sulfur is considered:
a)
malleable
b)
brittle
c)
ductile
d)
a good conductor
29.
How did you find out if an element is a good conductor?
a)
it lit up a light bulb
b)
hit it with a hammer
c)
bubbled in the presence of acid
d)
turned black
30.
Which of the following is a physical characteristic of a metalloid?
a)
texture
b)
malleable
c)
brittle
d)
semi-conductor
31.
What does luster mean?
a)
Breaks into pieces
b)
can be hammered into thin sheets
c)
No shine
d)
reflects light, shiny
32.
What does brittle mean?
a)
Breaks into pieces
b)
can be hammered into thin sheets
c)
No shine
d)
reflects light shiny
33.
What element in Group 1 is not a metal but a nonmetal?
a)
Helium
b)
Lithium
c)
Hydrogen
d)
Oxygen
34.
A proton has a positive charge and a mass of ____ amu.
a)
0
b)
1
c)
.5
d)
2
35.
A neutron has a negative charge and a mass of ____ amu.
a)
0
b)
1
c)
2
d)
.5
36.
How do you calculate the charge of an atom?
a)
protons - electrons = charge
b)
protons - neutrons = charge
c)
its equal to the number of electrons = charge
d)
protons = charge
37.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
38.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
39.
What is the mass number of this nucleus?
a)
1
b)
3
c)
4
d)
7
40.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
41.
If the number of protons equal the number of _____, the atom will have no charge
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
42.
An atom with an unequal number of protons and electrons is said to have (a) ___.
a)
no charge
b)
balance
c)
charge
d)
unbalance
43.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
44.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus
45.
Elements with similar properties
a)
Periods
b)
Groups
46.
Where are electrons?
a)
Nucleus
b)
Orbits
47.
On Periodic Table, how are elements ordered?
a)
color
b)
shape
c)
atomic number
d)
alphabetically
48.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
49.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
50.
A "group" is a ____________ on the periodic table.
a)
column
b)
row
51.
A "period" is a ____________ on the periodic table.
a)
column
b)
row
52.
Helium, neon, argon, krypton, xenon, and radon are known as _____________.
a)
halogens
b)
noble gases
c)
metalloids
d)
transition elements
53.
The most basic building block of matter (smallest part of an element) is called a(n) __________.
a)
Product
b)
Reactant
c)
Atom
d)
Molecule
54.
Hydrogen is grouped with the alkali metals because it has ___________.
a)
1 electron
b)
2 electrons
c)
metal
d)
no compounds
55.
Which of the following is NOT a characteristic of most metals?
a)
Brittle
b)
Good conductor
c)
Ductile
d)
Malleable
56.
Which of these grouping of elements could have the characteristic of luster (shiny)?
a)
Metal
b)
Nonmetal
c)
metalloids
d)
Both metals and metalloids
57.
All of the following would classify an element as a metal except?
a)
Dull
b)
Luster
c)
Malleable
d)
Hard
58.
What is the volume of the screw?
a)
10 mL
b)
13 mL
c)
16 mL
d)
3 mL
59.
What is the volume of the water?
a)
25 mL
b)
30 mL
c)
33 mL
d)
35 mL
60.
How many valence electrons does Hydrogen have?
a)
1
b)
2
c)
3
d)
4
61.
How many valence electrons does magnesium have?
a)
1
b)
2
c)
12
d)
24
62.
How many valence electrons does Krypton have?
a)
36
b)
18
c)
8
d)
4
63.
How many valence electrons do atoms in group 16 have?
a)
4
b)
5
c)
6
d)
7
64.
What element has 3 valence electrons and is in period 4?
a)
Aluminum
b)
Gallium
c)
Silicon
d)
Germanium
65.
How many shells of electrons does Calcium (Ca) have?
a)
1
b)
2
c)
3
d)
4
66.
This element has 20 neutrons and 19 negatively charged particles
a)
Kr
b)
K
c)
Rb
d)
Xe
67.
Valence electrons are found in the ______ energy level.
a)
Farthest in
b)
Middle
c)
Outermost
68.
a)
2
b)
3
c)
5
69.
How many electrons can the first energy level hold?
a)
2
b)
8
c)
18
d)
10
70.
How many electrons can the 2nd energy level hold?
a)
2
b)
8
c)
18
d)
10
71.
Boron has 5 electrons, how many valence electrons
a)
3
b)
5
c)
2
d)
8
72.
Fluorine has 9 electrons, how many does it have in its valence shell?
a)
7
b)
2
c)
8
d)
9
73.
How many electrons does Calcium (Ca) need to lose to become stable?
a)
1
b)
2
c)
3
d)
4
74.
How can you tell if 2 elements are from the same periods on the periodic table of elements?
a)
They are from the same periods if they have the same number of valence electrons
b)
They are from the same periods if they have the same number of energy levels or shells
c)
They are from the same periods if they have they react similarly
d)
They are from the same periods if they have similar chemical properties
75.
Which atomic diagram is considered to be a nonmetal, nonreactive, and a gas?
a)
A
b)
B
c)
C
d)
D
76.
How many valence electrons does this element have?
a)
2
b)
6
c)
4
d)
3
77.
True or false: Chemical reactivity relates to the number of valence electrons
a)
True
b)
False
78.
What is the name of Woody's owner in Toy Story?
a)
Andy
b)
Ryan
c)
Mark
d)
Andrew
79.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
80.
A researcher wants to experiment with an element that reacts like sulfur (S) but has a smaller atomic mass. Which element should the researcher select for the experiment?
a)
Oxygen (O)
b)
Selenium (Se)
c)
Phosphorous (P)
d)
Chlorine (Cl)
81.
An element’s reactivity and other chemical properties are determined by the number of -
a)
isotopes it has.
b)
oxidation states.
c)
orbitals in an atom.
d)
valence electrons.
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