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WorksheetsAtoms & its parts
Total questions: 25
Worksheet time: 18mins
Name
Class
Date
1.
Protons are located in the nucleus of the atom.
A proton has _______________.
A proton has _______________.
a)
No charge
b)
A negative charge
c)
A positive charge
2.
Which of these is the proton?
a)
A
b)
B
c)
C
3.
Which of these is the electron?
a)
A
b)
B
c)
C
4.
Which number here is my atomic number?
a)
5
b)
10.811
5.
How many Electrons?
a)
10.8
b)
5
c)
6
6.
An electron has this charge...
a)
positive
b)
negative
c)
no charge (neutral)
7.
What is the name of this atom?
a)
Lithium
b)
Lanthinum
c)
Boron
8.
What is the Atomic Number?
a)
7
b)
6.941
c)
3
9.
What is the Average Atomic Mass?
a)
6.941
b)
6
c)
3
10.
The atomic number of an atom is _____________________.
a)
The mass of the atom
b)
The number of proton + neutrons
c)
The number of protons
11.
How many Protons are in one atom of Lithium?
a)
3
b)
7
c)
6.941
12.
How many Electrons are in one atom of Lithium?
a)
3
b)
6.941
c)
7
13.
How many Neutrons are in one atom of Lithium?
a)
6.941
b)
3
c)
4
14.
The atomic mass of an element is equal to:
a)
# of protons
b)
Total # of protons and neutrons
c)
# of electrons
15.
What determines the order of elements on today's periodic table?
a)
Increasing Atomic Mass
b)
Decreasing atomic number
c)
Increasing atomic number
16.
What is the atomic number of calcium?
a)
20
b)
40
c)
40.078
17.
a neutron has this charge...
a)
negative
b)
positive
c)
neutral
18.
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.
19.
Atoms are the ______ building blocks
a)
Largest
b)
Smallest
20.
Neon has 10 protons and 10 electrons. The electrons fill the energy levels in Neon like this:
a)
2 in the first, 2 in the second, and 6 in the third
b)
4 in the first, 4 in the second, and 2 in the third
c)
2 in the first, and 8 in the second
d)
-
21.
The element symbol for potassium:
a)
K
b)
Po
c)
Pt
22.
An atoms overall charge is
a)
positive
b)
negative
c)
neutral
23.
All matter is made of what?
a)
compounds
b)
atoms
c)
electrons
24.
B and C are found in the ______ of an atom.
a)
Energy levels
b)
Empty Space
c)
Nucleus
25.
The number 3 on the left side of the periodic table tells you how many ______________.
a)
electrons
b)
energy levels or obitals
c)
protons
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