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WorksheetsThe Periodic Table: Elements, Compounds, Mixtures
Total questions: 35
Worksheet time: 1hrs 10mins
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.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
3.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
4.
What period and group is Silver (Ag)?
a)
Period 2, Group 1
b)
Period 3, Group 16
c)
Period 5, Group 11
d)
Period 2, 14
5.
The elements in this group have 5 valence electrons and include elements N, P, and As.
a)
Group 5
b)
Group 1
c)
Group 18
d)
Group 15
6.
The elements in this group only have 1 valence electron and include Li, Na, and K.
a)
Group 11
b)
Group 1
c)
Group 3
7.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
8.
A negatively charged particle that moves around the nucleus is a(n)
a)
proton
b)
neutron
c)
electron
d)
quark
9.
What does the 6 represent?
a)
Atomic mass
b)
atomic number
c)
chemical symbol
d)
element name
10.
Which part is known as the atomic mass?
a)
N
b)
7
c)
14.00643-14.00728
d)
nitrogen
11.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
12.
Particles in an atom's nucleus that are neutral and have no charge are
a)
megatrons.
b)
electrons.
c)
neutrons.
d)
protons.
13.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
14.
Two elements chemically bonded form
a)
element
b)
compound
c)
mixture
d)
solutions
15.
What does the 1 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
16.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
17.
what does the 6 represent?
a)
Atomic mass
b)
atomic number
c)
chemical symbol
d)
element name
18.
The positive particles of an atom are
a)
electrons
b)
atoms
c)
neutrons
d)
protons
19.
The central region of an atom where its neutrons and protons are is called the
a)
nucleus
b)
electron cloud
c)
core
d)
center
20.
Neutrons are
a)
negative
b)
positive
c)
neutral
d)
cows
21.
Electrons are
a)
negative and in the nucleus
b)
positive and at the edge of the atom
c)
not in an atom
d)
negative and at the edge of the atom
22.
Element is a
a)
pure substance
b)
compound
c)
mixture
d)
molecule
23.
which one only has one type of atom In it.
a)
Element
b)
compound
24.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
25.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
26.
made up of two or more atoms chemically combined
a)
atom
b)
element
c)
molecule
d)
compound
27.
made up of two or more DIFFERENT atoms/elements chemically combined
a)
atom
b)
element
c)
molecule
d)
compound
28.
Is NO2 an element or a compound?
a)
element
b)
compound
29.
What compound is made of hydrogen and oxygen atoms?
a)
Iron
b)
Gold
c)
Helium
d)
Water
30.
What is formed when two or more elements join together?
a)
Proton
b)
Compound
c)
Neutron
d)
Mixture
31.
Identify whether the following is an atom, element, or molecules
a)
A) molecules
b)
B)atoms
c)
C)elements
d)
D)metals
32.
Where are protons and neutrons located?
a)
in the nucleus
b)
in the electron cloud
c)
in the valence shell
33.
What is the charge on a proton?
a)
positive
b)
neutral
c)
negative
34.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
35.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
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