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WorksheetsChemistry Review
Total questions: 55
Worksheet time: 28mins
Where are protons located?
In the electron cloud
In the nucleus
Attached to Bosons
Orbiting Fermion Particles
What is the charge of a proton?
Neutral (0)
Negative (-)
Positive (+)
Gold (Au)
What are the 2 subatomic particles in the nucleus?
Protons and Neutrons
Leptons and Bosons
Electrons and Ions
Quarks and Fermions
Where are electrons located?
Inside Protons
Connected to Masons
Bonded to Quarks
In the Electrons Cloud
Which element has 7 protons?
Praseodymium
Ununpentium
Nitrogen
Lutetium
Which element has 79 protons?
Gold
Mendelevium
Uranium
Technidium
What in an atom tells you how the atom will react in a chemical reaction?
How negative protons are
How many neutrons there are
The number of Dark Matter Particles
Number Valence Electrons in the outer shell
The valence electrons are located -
In the nucleus
On every energy level (all rings)
On the last energy level (outside ring)
Near the neutrons
The Atomic Number tells you the number of
Protons and Electrons
Neutrons
Valence Electrons
Energy Levels
Noble Gases on the right side of the periodic table are -
Very Reactive Metalloid
In group 18 and have a full outer valence shell (Not reactive)
A form of Earth Alkali Metals
Part of the transition metals
Transition Metals are located -
In the middle of the periodic table
On the left side of the periodic table
On the right side of the periodic table
On the staircase of the periodic table where the metalloids are located
Periods, on the left side of the periodic table tell you the number of Energy Levels/Shells (Circles around the Nucleus).
True
False
Groups numbers at the top of the periodic table tell you the - -
Number of Photons
Number of Valence Electrons
Number of Neutrons
Number of Protons
Which two alkali metals are the most reactive?
Lithium and Sodium
Iron and Osmium
Zinc and Mercury
Boron and Aluminum
Titanium is a Metalloid.
True
False
Argon is a Noble Gas.
True
False
How many Hydrogen and Oxygen atoms are in 3H2O2?
Hydrogen 3 and Oxygen 2
Hydrogen 2 and Oxygen 2
Hydrogen 3 and Oxygen 9
Hydrogen 6 and Oxygen 6
Reactants on the left, produce a Product that's on the right.
True
False
Evidence of a chemical change is -
A change in is physical appearance
Paper that has been shredded
Wood that has been chopped into firewood
Color Change, Gas Production, Light, Odor, Temperature Change, Combustion
The Law of Conservation of Mass State that -
Energy cannot be created or destroyed only transformed.
Energy does not move
Energy lasts forever
Energy cannot be transformed into work
Which of the following are found in the nucleus of an atom?
electrons and protons
neutrons and electrons
protons and energy
protons and neutrons
How many carbon atoms are represented on the product side in the reaction?
1
2
6
12
If you observed foaming bubbles in a flask and a balloon begins to expand, you can concluded that—
a physical change was occurring because the vinegar was boiling
the bubbles are indicating a chemical change is occurring
the baking soda and vinegar were products of a chemical reaction
the baking soda was not reacting
An atom consists of 11 electrons, 12 neutrons, and an undetermined number of protons. Which information would be helpful in determining the number of protons?
mass number
conductivity
number of energy levels
chemical family
What element is represented in this model if the atomic number is 3?
lithium
carbon
nitrogen
neon
Which model represents an atom of Boron with an Atomic Mass of 11?
A
B
C
D
Which of the following lists all the elements that are present in the molecule, K2CO3 ?
Krypton, carbon, and oxygen
Krypton and cobalt
Potassium, carbon, and oxygen
Potassium and cobalt
Which of the following equations demonstrates an actual chemical reaction that forms a new substance?
Zn + 2HCl → ZnCl2+H2
H2O + NaCl → H2O
Zn + Al +Cu → Zn + Cu + Al
C12H22O2 + H2O → H2O + C12H22O2
Element Y is an odorless, tasteless, non-reacting gas at room temperature. Where would Element Y be placed on the periodic table?
A
B
C
D
Which of the following lists the elements in order, from those having the fewest protons to those having the greatest number of protons?
Li, Be, He, C, N
N, P, As, Sb, Bi
Cs, Rb, Po, At, Rn
At, I, Br, Cl, F
Which symbol is associated with structure C?
( - ) NEGATIVE
(+) POSTIVIE
(X) TIMES
NONE
Which elements most likely belong in the same group on the periodic table?
R and Q
X and Y
Y and R
Q and X
A certain group of elements are listed below.
● Nonmetals
● 7 valence electrons
Which of the following elements is a member of this group?
Boron
Bromine
Magnesium
Sulfur
C3H5(NO3)3 is a compound called Nitroglycerin.
How many atoms of oxygen are in a molecule of nitroglycerin?
1
3
6
9
An element has 27 Protons, 27 Electrons, and a Mass Number of 59. How many neutrons are in this atom?
89
32
25
15
What evidence would reveal a chemical reaction of rocks?
having a white color
changing color or bubbling when tested with a drop of acid
having a rough surface
being easy to scratch with a piece of metal
Which of the following chemical formulas represents a single element?
4KMnO4
2K2O
4MnO
5O2
What is true about elements P, Q, R, and S?
They are in the same period
They are in the same group
They are nonmetals
They are gases
Which statement is true about electrons?
Electrons contribute most of the mass of an atom.
Electron placement determines an atom’s reactivity.
Electron placement determines properties such as luster.
Electrons determine whether an atom is liquid at room temperature.
Which of the following is NOT evidence that a chemical reaction is happening?
color change
odor change
temperature change
no observable change
What part of the atom has no charge?
Protons
Quarks
Higgs Boson
Neutron
How many electrons can be held in the 1st energy level?
8
40
2
30
The Mass Number is determined by which subatomic particles?
Electrons and Protons
Protons and Neutrons
Electrons and Neutrons
Dark Matter
What is the name for the type of subatomic particle that is electrically neutral and found in the nucleus of an atom?
Proton
Neutron
Ion
Electron
Which elements have only one valence electron?
Group 17
Group 8
Group 1
Group 18
What element has 26 Protons, is in Period 4, and is a Transition Metal?
Fe
Bi
Ac
Kr
What element is a transition metal and has 80 electrons?
Ga
Hg
Ca
Es
Metals are shiny, have luster, are malleable, ductile, and are good conductors of electricity.
True
Fale
Protons determine the element's identity?
True
False
Neutrons have a Negative Charge.
True
False
A large amount of Na will explode in water (H2O).
True
False
Rb in group 1, when placed in water (H2O) will melt very slowly.
True
False
Which answer below is a type of chemical reaction?
Combustion, Fire
Chopping Firewood
Shredding Paper
Crushing a Can
Matter is anything that has Mass and takes up Space (Volume).
True
False
An element is a substance consisting of atoms which all have the same atomic number or number of protons.
True
False
