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WorksheetsChemistry Mini Test #4
Total questions: 113
Worksheet time: 2hrs 55mins
How many electrons does this oxygen atom have?
16
8
24
6
How many energy levels does Oxygen have?
16
8
2
6
How many electrons does the first shell hold?
1
2
4
8
How many electrons can be in the 2nd energy level hold?
1
2
4
8
If both protons and neutrons are found in the nucleus, why is it positive?
The reason it is positive is because neutrons have a positive charge and protons have a negative charge.
The reason it is positive is because neutrons have a negative charge and protons have a positive charge
The reason it is positive is because neutrons have no charge and protons have a positive charge.
The reason it is positive is because neutrons have no charge and protons have a negative charge
It is a region of space about a nucleus that contains electrons that have approximately the same energy.
Orbital
Electron subshell
Energy level
Nucleus
What is the maximum number of electrons in the second energy level?
18
8
32
2
What are valence electrons?
The total number of electrons in an atom
The number of electrons in the outermost shell
The number of electrons in the second shell
The number of protons in the outermost shell
How many valence electrons does carbon have?
4
5
6
7
USE THE PERIODIC TABLE
How many valence electrons does Phosphorus have?
31
5
15
4
Hydrogen needs _____ electrons in its valence shell to be stable.
4
6
8
2
How many valence electrons does Aluminum Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
How many valence electrons does Neon Have?
4 Valence electron
5 Valence electron
6 Valence electron
7 Valence electron
8 Valence electron
All atoms are most stable with (or would "prefer") how many electrons in their valence shell?
1
2
8
18
How many electrons in the second energy shell?
2
8
10
12
14
How many electrons in the innermost energy shell?
2
8
10
12
14
Which of the following has a positive charge?
proton
neutron
electron
atom
The neutral atoms of all of the isotopes of the same element have
different numbers of protons
equal numbers of neutrons
the same number of protons
the same mass numbers
An element’s atomic number is equal to its number of
protons
neutrons
valence electrons
protons and neutrons
What is the mass number of an element that has 19 protons, 19 electrons, and 20 neutrons?
19
20
39
58
A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is?
26
30
52
56
Oxygen’s atomic number is 8. This means that an oxygen atom has
eight neutrons in its nucleus
a total of eight protons and neutrons
eight protons in its nucleus
a total of eight neutrons and electrons
Which is NOT found in the nucleus of an atom?
electron
neutron
proton
quark
Atoms that gain or lose electrons are called
metals
non metals
ions
isotopes
Atoms of different elements are different because they have different numbers of what type of particle?
electrons
photons
protons
neutrons
The 3 basic components of an atom are
quarks, neutrons and electrons
protons, neutrons and ions
protons, neutrons and electrons
protons, neutrinos and ions
Which particles have approximately the same size and mass as each other?
neutrons and electrons
none - they are all very different in size and mass
electrons and protons
protons and neutrons
Which two particles would be attracted to each other?
protons and neutrons
electrons and neutrons
protons and electrons
neutrons and photons
Changing the number of neutrons in an atom causes it to be a?
charge
element
ion
isotope
According to atomic theory, electrons are usually found
outside the nucleus, in stationary positions
in the atomic nucleus
outside the nucleus in energy levels, also known as the electron cloud
next to the protons
Mass number =
number of electrons plus neutrons
number of protons only
number of protons plus neutrons
number of protons plus electrons
An atom has a mass number of 37 and atomic number 17. How many protons does it have?
20
17
54
21
Which of the following determines the chemical properties of an element?
Number of electrons
Number of neutrons
Number of protons
All of the above
Which element is a metal in the same group of the periodic table as element A?
B
C
D
E
What is the atomic number of this atom?
1
3
4
7
What is the mass number of this atom?
1
3
4
7
What does the 6 represent?
Atomic mass
atomic number
chemical symbol
element name
How many electrons does this atom have?
2
4
6
10
In a ___________change, a substance changes into a different substance.
Physical
Chemical
What are reactants?
The chemicals that start the reaction.
The chemicals that the reaction produced.
The chemicals that are on the right side of the arrow.
What are products?
The chemicals that start the reaction.
The chemicals that the reaction produced.
The chemicals that are on the left side of the arrow.
What is the type of reaction shown above?
Synthesis
Decomposition
Single Replacement
Double Replacement
Identify the reaction type:
C2H6 + O2 --> CO2 + H2O
Double replacement
Synthesis
Acid base
Combustion
Identify the reaction type for the following equation:
K + F2 --> KF
Double replacement
Single Replacement
Synthesis
Decomposition
Identify the type of reaction:
ZnCl2 + Mg --> Zn + MgCl2
Precipitate
Single Replacement
Double Replacement
Decomposition
Identify the reaction type:
NaCl + KOH --> KCl + NaOH
Double replacement
Combustion
Synthesis
Decomposition
Identify the reaction type:
H2O2 --> H2O + O2
Decomposition
Synthesis
Combustion
Acid Base
Na+ and Cl- create...
Na2Cl
NaCl2
Na2Cl2
NaCl
Potassium and Sulfur create...
KS
KS2
K2S
K2S2
The chemical formula of Iron (III) and bromine is
FeBr
Fe(III)Br
FeBr₃
Fe₂Br₃
Zinc Oxide
ZnO2
Zn2O
Zn4O
ZnO
The combination of Fe2+ ion and Cl- ion produce
FeCl4
FeCl
FeCl2
FeCl3
Na1+ F1-
K1+ S2-
Al3+ O2-
Al3+ O2-
Name this compound:
AgF
Silver (I) Fluoride
Silver Fluorine
Silver Fluoride
Silver (I) Fluorine
The first step in naming an ionic compound is always...
Naming the anion (non-metal)
Changing the ending to -ide
Naming the cation (metal)
Writing the cation charge
Na2S
Name this compound: KF
Potassium fluoride
Potassium fluorite
Fluorine potasside
Potassium fluorate
Metals tend to _____ electrons to form cations; nonmetals tend to _____ electrons to form anions.
lose ; lose
gain; lose
gain ; gain
lose; gain
In an ionic bond, the ions are held together because...
the positive nucleus of each ion attracts the other ion's negatively charged electrons
the ions have opposite charges
as the electron moved from one atom to another it pulled the atom along with it
electrons are being shared
