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WorksheetsAtoms
Total questions: 40
Worksheet time: 2hrs 58mins
Name
Class
Date
1.
All matter is made of what?
a)
energy
b)
atoms
c)
electrons
d)
compounds
2.
A particle that moves around outside the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
3.
Neutrons are _______________ particles.
a)
negative
b)
positive
c)
neutral
d)
cows
4.
The positive particles of an atom are called ___________.
a)
electrons
b)
atoms
c)
neutrons
d)
protons
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.
The central region of an atom where its neutrons and protons are is called the
a)
nucleus
b)
electron cloud
c)
core
d)
center
7.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
d)
cannot be determined
8.
How many protons are in the element, Sodium, with an atomic number of 11?
a)
23
b)
11
c)
13
d)
14
9.
How many electrons are in the element, Oxygen, with the atomic number of 8?
a)
7
b)
10
c)
8
d)
9
10.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
11.
How many electrons does "Al," aluminum, have?
a)
5
b)
10
c)
13
d)
3
12.
Is Lithium a Metal, Non-Metal, or Metalloid?
a)
Metal
b)
Non-Metal
c)
Metalloid
13.
Who proposed the atomic theory?
a)
Democritus
b)
John Dalton
c)
Joseph Thomson
d)
Earnest Rutherford
14.
Who discovered the electron?
a)
Democritus
b)
John Dalton
c)
J. J. Thomson
d)
Earnest Rutherford
15.
Who determined the nucleus is in the center of the atom?
a)
John Dalton
b)
J. J. Thomson
c)
Democritus
d)
Ernest Rutherford
16.
Who came up with the plum pudding model?
a)
J. J. Thomson
b)
Ernest Dalton
c)
Democritus
d)
John Rutherford
17.
An atom has an atomic number of 30 and a mass number of 65. How many neutrons are in the atom?
a)
30
b)
65
c)
35
d)
95
18.
The atomic mass of an element is equal to:
a)
# of protons
b)
# of neutrons
c)
# of electrons
d)
Total # of protons and neutrons.
19.
Niels Bohr suggested that electrons.......
a)
are found in specific orbits
b)
electrons are scattered throughout the atom
c)
electrons move according to their energy level
d)
electrons are positive
20.
Is Sulfur a metal, nonmetal, or metalloid?
a)
metal
b)
nonmetal
c)
metalloid
21.
How many valence electrons are in the atom "Mg"?
a)
2
b)
5
c)
3
d)
9
22.
How many total electrons does carbon have?
a)
10
b)
12
c)
6
d)
14
23.
The noble gases have how many valence electrons?
a)
1
b)
2
c)
7
d)
8
24.
The alkali metals have how many valence electrons?
a)
1
b)
2
c)
7
d)
8
25.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
26.
Elements which are considered semiconductors are
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
27.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
28.
The blue atoms are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
29.
The atoms along the staircase are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
30.
Beryllium is in group (family) number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
31.
How many valance electrons does Iodine have?
a)
6
b)
16
c)
7
d)
17
32.
What is the name of the group that never reacts--ever; they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
33.
Each column or group in the periodic table is called a
a)
period
b)
family
c)
cluster
d)
unit
34.
Each horizontal row in the periodic table is called a
a)
group
b)
period
c)
cluster
d)
unit
35.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
36.
The yellow atoms are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
37.
What family does hydrogen belong to?
a)
Alkali Metal
b)
Alkaline Earth Metal
c)
Halogens
d)
None
38.
Calcium is most like which of the following?
a)
Barium
b)
Potassium
c)
Cesium
d)
Nitrogen
39.
Who discovered the neutron?
a)
James Chadwick
b)
J.J. Thomson
c)
Ernest Rutherford
d)
Niels Bohr
40.
Quarks are found inside of ____________.
a)
electrons and protons
b)
protons and neutrons
c)
neutrons and electrons
d)
leptons and electrons
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