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WorksheetsAtoms and the Elements
Total questions: 75
Worksheet time: 3590secs
Name
Class
Date
1.
What particle is NOT located in the nucleus?
a)
proton
b)
electron
c)
neutron
d)
quark
2.
The smallest piece of matter that still has the properties of an element is a(n)____.
a)
compound
b)
electron
c)
atom
d)
nucleus
3.
Protons have a ____ charge.
a)
positive
b)
negative
c)
neutral
4.
Neutrons have a ____ charge.
a)
positive
b)
negative
c)
neutral
5.
Electrons have a ____ charge.
a)
positive
b)
negative
c)
neutral
6.
What particle is NOT located in the nucleus?
a)
proton
b)
electron
c)
neutron
d)
atomic number
7.
What is A?
a)
Atomic Number
b)
Symbol
c)
Element Name
d)
Atomic Mass
8.
What is B?
a)
Atomic Number
b)
Symbol
c)
Element Name
d)
Atomic Mass
9.
What is C?
a)
Atomic Number
b)
Symbol
c)
Element Name
d)
Atomic Mass
10.
What is E?
a)
Atomic Number
b)
Symbol
c)
Element Name
d)
Atomic Mass
11.
Atomic mass is found by adding:
a)
protons and neutrons
b)
neutrons and electrons
c)
electrons and protons
d)
quarks and electrons
12.
Level 4 of the energy levels can hold a max of _____________ electrons.
a)
32
b)
4
c)
18
d)
2
13.
In an electrically neutral atom, there are the same number of protons as electrons:
a)
True
b)
False
14.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
15.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
16.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
17.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
18.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
19.
An atoms overall charge is
a)
positive
b)
depends on its mood
c)
neutral
d)
negative
20.
Which of the following is a negatively charged subatomic particle?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
21.
All matter is made of what?
a)
energy
b)
atoms
c)
electrons
d)
compounds
22.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
23.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Outside of the atom
24.
"C" is the element symbol for which element?
a)
calcium
b)
carbon
c)
chlorine
d)
cadmium
25.
What is the atomic symbol for sodium?
a)
Na
b)
So
c)
NaCl
d)
S
26.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
27.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
28.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
29.
How many neutrons are in the atom "K"?
a)
7
b)
2
c)
39
d)
20.1
30.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
31.
What are the 3 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
32.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
33.
Atoms are mostly filled with?
a)
electrons
b)
empty space
c)
protons
34.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
35.
How many protons, neutrons and electrons are present in an atom of hafnium, Hf, with a mass number of 178?
a)
72 protons, 178 neutrons, 106 electrons
b)
72 protons, 106 neutrons, 72 electrons
c)
178 protons, 250 neutrons, 72 electrons
d)
106 protons, 72 neutrons, 106 electrons
36.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
37.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
38.
Which element?
a)
Boron
b)
Carbon
c)
Nitrogen
d)
Lithium
39.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
40.
an element will always have the same number of
a)
neutrons
b)
protons
c)
isotopes
d)
atoms
41.
Identify this atom.
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
42.
What determines an element's reactivity?
a)
The number of protons
b)
The number of electrons
c)
The number of neutrons
d)
The number of valence electrons
43.
How many electrons can the first energy level hold?
a)
2
b)
4
c)
6
d)
8
44.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
45.
How do we solve for number of neutrons?
a)
Mass + Atomic Number= Neutrons
b)
Mass x Atomic Number = Neutrons
c)
Mass - Atomic Number = Neutrons
d)
Mass + Number of Protons = Neutron
46.
What is the mass number of this atom?
a)
4
b)
5
c)
9
d)
none of the above
47.
If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?
a)
positive
b)
negative
c)
neutral
d)
imaginary
48.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
49.
Where are the metalloids located on the periodic table?
a)
Blue
b)
Red
c)
Green
50.
Where are the nonmetals located on the periodic table?
a)
Blue
b)
Red
c)
Green
51.
A model of an atom that shows all of the electrons in their energy levels (shells) is called
a)
electron dot diagram
b)
valence electrons
c)
Bohr Model
52.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
53.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
54.
How many electrons are in a gold atom?
a)
79
b)
196
c)
117
d)
275
55.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
56.
What is the mass number of this nucleus?
a)
1
b)
3
c)
4
d)
7
57.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
58.
What is the mass number of this atom?
a)
4
b)
5
c)
9
d)
none of the above
59.
What is the atomic number of this atom?
a)
9
b)
10
c)
19
d)
27
60.
What is the mass number of this atom?
a)
9
b)
10
c)
19
d)
27
61.
What is the atomic number of this atom?
a)
4
b)
5
c)
9
d)
none of the above
62.
How many Protons does the element Titanium have?
a)
47
b)
22
c)
4
d)
48
63.
How many Protons does Chlorine have?
a)
17
b)
35
c)
18
d)
39
64.
How many maximum electrons can level 3 of the energy levels hold?
a)
3
b)
6
c)
18
d)
8
65.
What is the Atomic Mass of Gold?
a)
197g
b)
11g
c)
196g
d)
47g
66.
What is the Atomic Number of Silicon?
a)
3
b)
28
c)
14
d)
16
67.
How many Neutrons does Uranium-238 have?
a)
92
b)
146
c)
238
d)
149
68.
How many Electrons does the
Potassium cation have?
Potassium cation have?
a)
19
b)
20
c)
18
d)
39
69.
How many Electrons does Mercury have?
a)
80
b)
200
c)
201
d)
81
70.
How many neutrons does Cobalt have?
a)
32
b)
27
c)
31
d)
59
71.
How many neutrons does Oxygen have?
a)
8
b)
10
c)
16
d)
11
72.
Radon has how many Electrons?
a)
86
b)
222
c)
18
d)
6
73.
How many Electron shells does Nickel have?
a)
10
b)
3
c)
2
d)
28
74.
What atom has an atomic number of 4?
a)
Helium
b)
Lithium
c)
Potassium
d)
Beryllium
75.
A ___________ is an arrangement of elements in columns
a)
columns
b)
rows
c)
periodic table
d)
electron shell
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