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WorksheetsAtomic Structure Quiz 1
Total questions: 36
Worksheet time: 19mins
If an atom has 14 protons, 14 electrons, and 15 neutrons, its mass number will be _____.
29
14
15
44
An atom's atomic number is 4 and its atomic mass is 9. How many neutrons does it have?
5
4
3
6
An atom's atomic number is 3 and its atomic mass is seven. How many neutrons does it have?
4
3
5
6
What element has an atom with an atomic number of 4 and an atomic mass number of 9?
Be
Li
B
C
What is the atomic mass number of an atom that has 4 protons and 6 neutrons?
10 amu
4 amu
6 amu
12 amu
An element's Atomic Number is the same as the number ________ in the elements nucleus.
protons
neutrons
electrons
nucleons
What makes up the nucleus of an Atom?
Protons and Neutrons
Electrons and Protons
Electrons and Neutrons
Only Electrons
Most of the volume of an atom is occupied by...
empty space
nucleus
electrons
protons
What is the atomic number of Carbon?
6
12
8
14
Which of the following subatomic particles have a mass of 1 amu?
protons
neutrons
electrons
gluons
Where are electrons located in an atom?
Around the atom in a cloud
In the nucleus
On fixed paths around the nucleus
In random positions outside the nucleus
If an atom has 15 protons and 16 neutrons, what is the mass number?
31
15
16
32
How many protons does a typical atom of Ruthenium102 have?
44
102
58
66
What is the symbol for the element with 53 protons?
I
Xe
Zn
Ag
Which of the following determines the identity of an atom?
Protons
Neutrons
Electrons
Photons
How much does a proton weigh?
1 amu
2 amu
0.5 amu
1.5 amu
How many protons does the element with the symbol Fe have?
26
24
27
28
If an atom has 15 protons and 16 neutrons, what is the atomic number?
15
16
31
30
What is the atomic number of Bromine (Br)?
35
20
79
45
What is an electron?
a subatomic particle with a negative charge
a subatomic particle with a positive charge
an uncharged subatomic particle
a charged atom or molecule
An atom of an element with atomic number 48 and mass number 120 contains ______ protons, ______ electrons, and ______ neutrons.
48 protons, 48 electrons, and 72 neutrons
48 protons, 48 electrons, and 68 neutrons
46 protons, 46 electrons, and 74 neutrons
50 protons, 50 electrons, and 70 neutrons
If an element had an atomic number of 12 how many protons does it have?
12
6
18
24
Which one shows the correct charge of each atomic particles?
Proton
positive
Neutron
neutral
Electron
negative
Neutron: a subatomic particle with no electric charge, located within the nucleus of the atom
True
False
What determines the mass of an atom?
Protons and Neutrons
Electrons and Protons
Neutrons and Electrons
Only Protons
A Sodium atom contains 12 neutrons. Its atomic number is...
11
12
10
13
The atomic mass of Oxygen is ______.
15.99
16.00
15.95
16.50
Lithium has 3 protons in its nucleus. Its atomic number is...
3
2
4
5
The atomic number of Oxygen is ______.
8
6
10
12
The atomic number is always the same as the number of...
protons.
neutrons.
electrons.
isotopes.
Why might atoms of the same element have different masses?
Different numbers of neutrons
Different numbers of protons
Different numbers of electrons
Different energy levels
The atomic mass of an element is equal to...
the sum of its protons and neutrons.
the sum of its protons, neutrons, and electrons.
the sum of its electrons and protons.
the sum of its neutrons.
A Neon atom has 10 protons. What is its atomic number?
10
8
12
20
What is the atomic mass of an atom that has 13 protons and 20 neutrons?
33 amu
32 amu
34 amu
35 amu
The sum of the numbers of protons and neutrons of the nucleus of an atom is called the...
mass number
atomic number
neutron number
electron number
Where is the proton located?
Nucleus
Electron cloud
Atomic orbit
Periphery
