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WorksheetsPeriodic Table
Total questions: 20
Worksheet time: 17mins
Name
Class
Date
1.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
2.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
3.
All matter is made of .....
a)
energy
b)
atoms
c)
air
d)
chemistry
4.
The atomic number of an element tells the number of _____ in the nucleus of an atom of that element.
a)
protons
b)
neutrons
c)
electrons
d)
isotopes
5.
Most of the mass of an atom is found it its _____.
a)
electron cloud
b)
nucleus
c)
atomic number
d)
empty space
6.
Each is an example of matter except _____.
a)
a cloud
b)
air
c)
a dust particle
d)
a beam of light
7.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
8.
Rutherford's experiment showed that most of an atom is made up of _____.
a)
a nucleus
b)
an electron cloud
c)
empty space
d)
alpha particles
9.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
10.
What subatomic particles are located in the electron cloud?
a)
quarks
b)
protons
c)
electrons
d)
neutrons
11.
Which subatomic particle has a negative charge in the atom?
a)
proton
b)
neutron
c)
electron
d)
quark
12.
Which is an electron?
a)
A
b)
B
c)
C
13.
Which is a proton?
a)
A
b)
B
c)
C
14.
Which is a neutron?
a)
A
b)
B
c)
C
15.
Which item on this element square is the chemical symbol?
a)
Copper
b)
29
c)
Cu
d)
63.546
16.
Which item on this element square represents the atomic number?
a)
13
b)
Al
c)
Aluminum
d)
26.981538
17.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
18.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
19.
An atom of the element with atomic number 6 always has _____.
a)
six protons in its nucleus
b)
an atomic mass of six
c)
more than six neutrons
d)
six electron clouds
20.
What are subatomic particles?
a)
the nucleus
b)
electron cloud
c)
positive charge
d)
electrons, protons, and neutrons
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