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WorksheetsPrinciples of Chemistry Final Study Guide
Total questions: 55
Worksheet time: 29mins
Matter that has a definite volume and a definite shape is a __________.
solid
liquid
gas
plasma
When two or more substances are physically combined, the result is a(n) ___________.
chemical change
element
compound
mixture
A type of matter formed by chemically joining two or more elements is known as a __________.
compound
solution
colloid
suspension
The color of ink is a __________.
physical change
physical property
chemical change
chemical property
Three examples of physical changes are:
sawing wood, crushing a can, and burning a marshmallow
burning of gasoline, rotting an egg, and exploding fireworks
freezing of water, evaporation of gasoline, and rusting of a nail
boiling of water, blowing up a balloon, and melting a candle
Which part of the periodic table indicates the number of energy levels in the electron cloud?
Group
Family
Valence Electrons
Period
What is an atom's nucleus made of?
protons and electrons
protons only
protons and neutrons
neutrons only
Atoms of the same element that have different numbers of neutrons are called __________.
molecules
ions
protons
isotopes
Which particles determine the atomic number of an element?
protons only
neutrons and protons
neutrons only
protons and electrons
At room temperature, most metals are __________.
solids
liquids
gases
plasma
Hydrogen is in group #1 with lithium, sodium, potassium, rubidium, cesium, and francium because it __________.
is a metal
is a gas
has 1 valence electron
has 1 energy level
Which statement about the arrangement of the periodic table is not true?
Noble gases are in the group farthest to the right.
Metals are found on the left side of the periodic table.
Rare Earth elements are in the first column on the left.
Transition metals are in the center of the periodic table.
Which element is most likely to gain electrons in a chemical reaction?
Kr
K
Br
Ca
How does an atom of aluminum become an ion?
It gains 3 electrons
It gains 3 protons
It loses 3 electrons
It loses 3 neutrons
The properties of a compound are __________ the properties of the elements that form it.
similar to
different from
identical to
derived from
Identify whether the following mixtures are homogenous or heterogenous: Salad Dressing
Heterogenous
Homogenous
Identify whether the following mixtures are homogenous or heterogenous: Trail Mix
Heterogenous
Homogenous
Identify whether the following mixtures are homogenous or heterogenous: Lemonade
Heterogenous
Homogenous
Identify each of the following as a physical change or chemical change: Burning Popcorn
Physical Change
Chemical Change
Identify each of the following as a physical change or chemical change: Making Water
Physical Change
Chemical Change
Identify each of the following as a physical change or chemical change: Rusting of a Fishing Pole
Physical Change
Chemical Change
Identify each of the following as a physical change or chemical change: Boiling Water
Physical Change
Chemical Change
Identify each of the following as a physical change or chemical change: Ice Melting
Physical Change
Chemical Change
Using the graduated cylinder, pick the accurate and precise measurement below.
22.0 mL
22 mL
20.0 mL
20 mL
What is 78,900,000,000 written in scientific notation?
789 x 109
7.89 x 1010
7.89 x 109
7.89 x 1011
The speed of light is approximately 3 x 108 m/s. How would this be written in standard notation?
300,000 m/s
3,000,000 m/s
30,000,000 m/s
300,000,000 m/s
Mrs. Joyner wants to measure the volume of a liquid very precisely. What is the BEST lab equipment she could use to do this?
Beaker
Test Tube
Graduated Cylinder
Erlenmeyer Flask
Concert the following: 458 kg to g
(a)
Concert the following: 331 K to 'C
( your answer = "# degrees Celsius")
(a)
The total number of electrons in the outer shell of a sodium atom is
1
2
8
18
The total number of neutrons in the nucleus of any atom is equal to the
mass number of the atom
atomic number of the atom
atomic number minus the mass num
mass number minus the atomic number
The maximum number of electrons that can occupy the 2nd shell of an atom of magnesium is
1
2
8
18
The mass of the most common isotope of an element is known based on an element's __________.
mass number
average atomic mass
atomic number
number of electrons
Which of the following is a transition metal?
Calcium
Nickel
Aluminum
Tellurium
An atom is neutral because
neutrons balance the protons and electrons
nuclear forces stabilize the charges
the numbers of protons and electrons are equal
the numbers of protons and neutrons are equal
Which part of the periodic table indicates the number of energy levels in the electron cloud?
Group
Family
Valence Electrons
Period
What is the correct symbol for an isotope of carbon with 6 protons and 6 neutrons?
12C
12C
6C
6C6
Which statement about the arrangement of the periodic table is not true?
Noble gases are in the group farthest to the right.
Metals are found on the left side of the periodic table.
Rare Earth elements are in the first column on the left.
Transition metals are in the center of the periodic table.
The force that holds the atoms together
Attractive force between the (+) nucleus and (-) electron cloud
Repulsive force between (-) electrons
Repulsive force between (+) protons
Attractive force between (+) protons and (-) electrons
The force that gives atoms their shape
Attractive force between the (+) nucleus and (-) electron cloud
Repulsive force between (-) electrons
Repulsive force between (+) protons
Attractive force between (+) protons and (-) electrons
The force that gives atoms their energy
Attractive force between the (+) nucleus and (-) electron cloud
Repulsive force between (-) electrons
Repulsive force between (+) protons
Attractive force between (+) protons and (-) electrons
Which of the following are metals?
Al
Na
Ar
H
Te
Which of the following are metalloids?
Al
Na
Ar
H
Te
This element is int he same family as Br, but has fewer protons than Mg. It must be (a) .
This element has 6 energy levels and 8 valence electrons. It must be (a) .
This element is in the Alkaline Earth Metals group and has 3 energy levels. It must be (a) .
Write this following isotope in hyphen notation:
An isotope of Carbon has 7 neutrons.
(a)
Plum Pudding Model; atom is a positive sphere with negatively charged particles evenly embedded throughout.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Arranged the elements on the periodic table based on atomic number.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Electron Cloud Model; surrounding the nucleus is an electron cloud made of shells - electrons do not, however, travel in fixed orbit.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Arranged the elements on the periodic table based on atomic mass.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Solid Sphere Model; elements are atoms with different masses.
Rutherford
Bohr
Democritus
Dalton
Named the atom based on the Greek word meaning indivisible
Rutherford
Bohr
Democritus
Dalton
Electrons travel in fixed orbits around the nucleus of the atom
Rutherford
Bohr
Democritus
Dalton
Nuclear Model; Gold Foil experiment allowed him to discover that the nucleus was the positively charged center of the atom surrounded by negatively charged electrons.
Rutherford
Bohr
Democritus
Dalton
