WorksheetsQuarter 1 Review
Total questions: 120
Worksheet time: 2hrs 0mins
Select the measurement with the correct number of significant figures.
8.250 cm
8.25 cm
8.2 cm
8 cm
Select the measurement with the correct number of significant figures.
6 cm
6.770 cm
6.77 cm
6.775 cm
How do you measure the volume using a graduated cylinder?
Measurements must be taken from the top of the meniscus and at eye level
Measurements must be taken by looking from above the cylinder
Measurements must be taken by looking from below the cylinder
Measurements must be taken from the bottom of the meniscus and at eye level
In a measurement, significant figure consist of the digits known ___________.
only
plus one estimated digit
plus two estimated digits
How many significant digits would you report in this measurement?
1
2
3
4
What is the volume shown in this graduated cyclinder?
4.30 mL
4.35 mL
4.4 mL
4.40 mL
What is the volume shown in this graduated cyclinder?
24.0 mL
24 mL
23.7 mL
23 mL
How many sig figs should be reported in this measurement of temperature?
1
2
3
4
How do we solve for mass if we know density and volume?
Mass = Density / Volume
Mass = Volume / Density
Mass = Density x Volume
Cannot solve for mass
103.45 + 2 =
What is the correct answer for this problem according to Sig Fig rules:
3.5 cm x 4.21cm =
14.7 cm
14.7 cm2
15 cm
15 cm2
This bullseye demonstrates...
High Accuracy & High Precision
High Accuracy & Low Precision
Low Accuracy & High Precision
Low Accuracy & Low Precision
A set of data are all close in value to each other, but they are not close to the actual value. This set of data can be described as _________________.
precise
accurate
Accuracy means
the measurements are close to each other
the measurement is close to the true value
the measurements are close to each other
the measurements are close to each other and the true value.
How do you write 8.317 x 106 in decimal form?
The prefix milli means
10−2
10−3
10−1
103
The prefix kilo means
10−2
10−3
10−1
103
The prefix centi means
10−2
10−3
10−1
103
On the periodic table, K represents the element...
Phosphorous
Krypton
Potassium
Karbon
What period is the element Arsenic in?
2
3
4
5
What group is the element Francium in?
14
13
2
1
What is the atomic number of Magnesium?
12
11
4
20
_____is the joining of atomic nuclei
Fusion
chain reaction
Photosynthesis
Fission
_______is the splitting of atomic nuclei
Fission
nuclear reaction
Fusion
bayler reaction
Which reaction represents fusion?
Which reaction represents fission?
The mass numbers of the product is greater than the mass numbers of the original nucleus
The mass numbers of the product is less than that of the original nucleus
The mass numbers of the product is the same as the mass numbers of the original nucleus
The mass numbers of the product is 100 times greater than the original nucleus
Which type of nuclear process is shown by the model in the figure?
fission
fusion
What is the mass number of this atom?
1
3
4
7
How many protons and neutrons are in an 18Oxygen isotope?
8 protons
8 neutrons
10 protons
8 neutrons
8 protons
10 neutrons
18 protons
18 neutrons
What is the Half life of this isotope?
5 seconds
10 seconds
15 seconds
20 seconds
What is the Half Life of this isotope?
3 days
5 days
8 days
10 days
Why did Ernest Rutherford and his colleagues perform the Gold-Foil Experiment?
They wanted to test and confirm the Plum-Pudding model
They wanted to test John Dalton's Model
They were looking for electrons
They wanted to come up with their own Atomic Model
What is the name of J.J. Thomson's Model of an Atom?
Jimmy Neutron Model
Solar System Model
Plum-Pudding Model
Quantum mechanical Model
Who was the first person to "think" of an atom?
Democritus
J.J. Thompson
Rutherford
Bohr
Radioactive isotopes undergo nuclear decay for this reason.
to make new elements
to produce energy
to combine chemically
to become stable
Which form of radiation is the lowest energy, composed of a helium nucleus and being stopped by a piece of paper?
alpha
beta
gamma
neutrino
What does Z represent?
Atomic Mass (protons + neutrons)
Atomic Number (protons)
Charge (protons - electrons)
Element Symbol
What does X represent?
Atomic Mass (protons + neutrons)
Atomic Number (protons)
Charge (protons - electrons)
Element Symbol
What does A represent?
Atomic Mass (protons + neutrons)
Atomic Number (protons)
Charge (protons - electrons)
Element Symbol
Where are the nonmetals located on the Periodic Table?
On the right
On the left
On the stairstep
Where are the metalloids located on the Periodic Table?
On the right
On the left
On the stairsteps
Where are the metals located on the Periodic Table?
On the right
On the left
On the stairsteps
What is the average mass of this element?
Compute the average atomic mass for this element.
27.977 amu
28.09 amu
28.976 amu
An element exists as the three isotopes shown. What is the average atomic mass?
20.74 amu
22.56 amu
18.39 amu
24.31 amu
what part of the atom tells you what element it is?
Protons
nuetrons
electrons
electron cloud
How do you find how many nuetrons are in an atom?
subtract the atomic number by the atomic mass
its the same as the protons
its the atomic mass
add the atomic number and the atomic mass
In an endothermic reaction, heat is ...
absorbed
released
absorbed
released
What type of reaction is this?
Exothermic
Endothermic
Energy Producing
No way to tell
The graph shows a reaction profile for the reaction between methane and oxygen. What does X represent?
Activation energy
Overall energy
Reactants
Progress of the reaction
What type of reaction is indicated by the picture?
Endothermic
Exothermic
If our reaction travels away from Iron on this curve, what type of reaction would it indicate?
Endothermic
Exothermic
How many moles of carbon atoms are there in 5.0g of carbon?
An element's molar mass can be found on what part of an element's entry on the periodic table?
atomic number
atomic mass
group number
it can't be found on the periodic table
Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?
A
B
C
D
Valence electrons are located...
inside the nucleus
in outer space
on the outermost orbit of an atom
10
2
8
18
14
4
3
28
What is the maximum number of electrons that an s orbital can have?
1 electron
2 electrons
3 electrons
4 electrons
How many electrons can the p sublevel hold?
6
1s22s22p63s2
True or False: The ground state is the highest energy state of an electron.
True
False
Look carefully at the picture. It shows an electron in the excited state on the left, and the electron returning to its ground state on the right. When the electron return to the ground state it emits a_______________________.
blast of cold air
electrostatic charge
proton
photon (light)
The picture shows an atom in the ground state absorbing energy and the electron jumps to the excited state. Which state has higher energy?
Ground State
Excited State
What is a cation's charge?
positive
negative
neutral
depends on the element
What is an anion's charge?
positive
negative
neutral
depends on the element's charge
Does potassium form a cation or an anion?
cation
anion
If an atom gains electrons, the charge will be positive.
true
false
Which particles change the charge in atoms when ions are formed?
Protons
Electrons
Neutrons
Oxide is a(n)
Cation
Metal
Anion
Isotope
Waves with a long wavelength have a __________ energy
high
low
Waves with a high frequency have __________ energy
high
low
Which of the following colors of light have the highest energy
red
orange
green
violet
An electron that has gained energy beyond normal is said to be ...
excited
grounded
naturalized
The frequency of violet light is 7.5x1014 Hz. What is its wavelength?
4.0x10-7 m
4.0x107 m
2.25x1023m
2.25x1023 Hz
Red light has a wavelength of 6.75 x 10-7 m. What is its frequency?
2.03x1011 m
4.44x1014 Hz
4.44x1014 nm
2.03x1011 Hz
A wave with a large wavelength will have a ______ frequency and _____ energy
high, low
high, high
low, high
low, low
If short wavelength has more ENERGY than long wavelength, which color Lightsaber pictured is the most dangerous, or powerful?
Red
Orange
Blue
Green
The unit of wavelength is ___.
speed
How would you draw a Lewis dot diagram for Magnesium?
This is a correct Lewis structure for nitrogen (N)
This is a correct Lewis structure for oxygen (O)
The Lewis structure of an anion has...
zero dots
all eight dots
The Lewis structure of an cation has...
zero dots
all eight dots
This orbital diagram represents:
Carbon
Boron
Nitrogen
Oxygen
What is incorrect about this orbital diagram?
Both arrows in the 2p box should be pointing up
There are too many electrons in the 1s orbital
In the 2p boxes, there should only be 1 electron in the first 2p box and one in the 2nd 2p box
All the arrows should be pointing up
The number of arrows placed in an orbital diagram = the number of...
atoms
electrons
protons
neutrons
The s-block is represented by the letter....
A
B
C
D
The p-block is represented by the letter....
A
B
C
D
The d-block is represented by the letter....
A
B
C
D
The f-block is represented by the letter....
A
B
C
D
