WorksheetsPeriodic Table Test Review
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
What happens to the elements when combined into a mixture?
a)
Elements react to form new substance with new properties
b)
Elements keep original properties.
2.
What happens to the elements when combined to form a compound?
a)
Elements react to form new substance with new properties
b)
Elements keep original properties.
3.
Why do many scientists stir the solvent while adding the solute?
a)
Because it slows down the reaction.
b)
Because it brings the molecules into contact with each other faster.
4.
Does the sugar cubes or the smaller sugar granules have more surface area?
a)
Sugar granules
b)
Sugar cubes
5.
Which will dissolve more slowly?
a)
Sugar cubes
b)
Sugar granules
6.
Compounds can only be broken down by ___________________ changes.
a)
physical
b)
chemical
7.
How can mixtures be broken down?
a)
By physical changes
b)
By chemical changes
8.
How do you know if a compound has been formed from a chemical reaction?
a)
If new bonds were formed between two different elements.
b)
If there is a change in color
9.
Since mixtures are able to be separated by physical means and ink is a mixture, what is a way that ink can be separated into its different colors?
a)
chromatography
b)
distillation
c)
filtering
d)
boiling
10.
Where are electrons found and what type of charge to they have?
a)
Electrons are found in the nucleus and have a positive charge
b)
Electrons are found in the cloud surrounding the nucleus and they have a negative charge.
11.
What is found in the nucleus of an atom?
a)
neutrons only
b)
electrons and neutrons
c)
protons and neutrons
d)
protons and electrons
12.
What two things can you tell about an atom from its atomic number?
a)
Its number of protons and electrons
b)
Its number of protons and neutrons
13.
What characteristic of an element will always help you determine its identity?
a)
Its number of protons
b)
Its number of neutrons
c)
Its number of valence electrons
d)
Its number of orbitals
14.
Who discovered electrons?
a)
J.J. Thompson
b)
Ernest Rutherford
c)
Bill Nye
d)
Mrs. Frizzle
15.
What element does this Bohr Model represent?
a)
Lithium
b)
Helium
c)
Nitrogen
d)
Gold
16.
The theory that atoms are made up of mostly empty space was proposed by which scientist’s studies?
a)
J.J. Thompson and his Plum Pudding Model
b)
Ernest Rutherford and his Gold Foil Experiment
17.
What are valence electrons and why are they so important?
a)
Electrons that are in the nucleus , they are important because they contribute to an atom's mass.
b)
Electrons that are located on the outermost energy level of an atom and they are important to chemical reactivity.
18.
On the periodic table, where are most nonmetals found?
a)
1
b)
2
c)
3
d)
4
19.
Which group on the periodic table is least likely to react with other elements?
a)
Noble Gases
b)
Transition Metals
c)
Alkali Metals
d)
Halogens
20.
What are some examples of Noble Gases, which are the group of elements that are least likely to react?
a)
Hydrogen
b)
Boron
c)
Neon
d)
Carbon
21.
Elements that are in the same group, are likely to react in __________________ ways.
a)
Different
b)
Opposite
c)
Similiar
d)
Random
22.
Are alkali metals extremely reactive or unreactive?
a)
Unreactive
b)
Extremely Reactive
23.
How are the elements’ atomic masses organized on the periodic table?
a)
They increase as they go from left to right and down the periodic table
b)
They decrease as they go from left to right and down the periodic table
24.
What are 3 properties of elements in Group 2 (alkali earth metals) on the periodic table?
a)
1. They are shiny
2. They are solids at room temperature.
3. They each have two valence electrons.
2. They are solids at room temperature.
3. They each have two valence electrons.
b)
1. They are unreactive.
2. They are gases at room temperature.
3. They each have a full valence shell
2. They are gases at room temperature.
3. They each have a full valence shell
25.
If an element is found to the right of another on the periodic table, what do we know about that element?
a)
It has more protons than the element to the left of it.
b)
It has fewer protons than the element to the left of it.
26.
What are the symbols for the metals Gold, Silver, and Tungsten?
a)
Au, Ag, W
b)
G, Si, Tu
c)
Au, Ag, T
d)
G, Sl, W
27.
What is a property of all metals?
a)
Liquids at room temperature
b)
Brittle
c)
Good conductors of heat and electricity
d)
Dull
28.
When we use a graduated cylinder to do water displacement of a rock, what property of the rock are we measuring?
a)
Mass
b)
Volume
c)
Density
d)
Length
29.
How does density affect an objects ability to float?
a)
An object will float on top of a liquid that is more dense than the object and will sink into a liquid that is less dense.
b)
An object will float on top of a liquid that is less dense than the object and will sink into a liquid that is more dense.
30.
How do you measure the diameter of a circle?
a)
Measure the width across the middle.
b)
Measure around the outside of the circle.
31.
How could you describe a piece of metal that is not attracted to a magnet?
a)
Nonmagnetic
b)
Magnetic
c)
Picky
d)
Confused
32.
When silver or other metals become tarnished because of the oxygen in the air, are they going through a physical or chemical change?
a)
Physical
b)
Chemical
33.
Is ice melting a physical or chemical change? Why?
a)
Chemical, because it isn't ice anymore
b)
Physical because it only changed from a solid to a liquid (state change)
34.
What type of change occurs when a harmful substance is converted into a non-harmful substance?
a)
Physical
b)
Safety
c)
Chemical
d)
Toxicity
35.
Which is an example of a chemical change
a)
A Popsicle melting
b)
Statue of Liberty change color due to the copper metal tarnishing
c)
Grinding coffee
d)
Popping a helium baloon
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