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WorksheetsUnit 3 Test Review
Total questions: 63
Worksheet time: 2hrs 36mins
True or False: The atomic model has always been the same throughout the time.
True
False
What was the name of the scientist who organized the periodic table by patterns in the properties of elements?
Rutherford
Chadwick
Dalton
Mendeleev
Each square on the periodic table shows...? Check all that apply.
Name
Symbol
Mass number
Atomic number
Atomic mass
What can an atom be broken down into? Check all that apply.
Positives
Protons
Electrons
Neutrons
Negatives
True or False: Atoms are what maintain the chemical properties of an element.
True
False
A row is called a...?
Group
Row
Period
Column
How many periods are there on the periodic table?
7
18
9
16
A column is called a...?
Group
Row
Period
Column
How many groups are there on the periodic table?
7
18
9
16
The mass of an atom depends on...? Check all that apply
Protons
Neutrons
Electrons
The part of an atom that is smallest is the...?
Proton
Neutron
Electron
True or False: The mass number is the rounded atomic mass.
True
False
Which part of the atom will never ever change, unless we want to change the element?
Proton
Neutron
Electron
The charge of a proton is...?
Positive
Neutral
Negative
The charge of an electron is...?
Positive
Neutral
Negative
The charge of a neutron is...?
Positive
Neutral
Negative
True or False: The atomic mass is what tells you how many protons you have.
True
False
What is the atomic number?
You can click the picture to enlarge it.
54
131.29
131
What is the atomic mass?
You can click the picture to enlarge it.
54
131.29
131
What is the mass number?
You can click the picture to enlarge it.
54
131.29
131
What tells you the number of protons when you look at the periodic table?
Atomic Number
Atomic Mass
Mass Number
True or False: If an atom is neutral, the number of protons and electrons are the same.
True
False
How would you calculate the mass number?
Protons + Neutrons
Neutrons - Protons
Protons - Neutrons
Electrons + Neutrons
How would you calculate the number of neutrons?
Mass # + Atomic #
Atomic # - Mass #
Mass # - Atomic #
Isotopes have a different number of...?
Protons
Neutrons
Electrons
True or False: Isotopes are atoms of the same element.
True
False
The neutral atom with 9 neutrons and 8 protons is...?
Fluorine - 8
Oxygen - 9
Oxygen - 17
Fluorine - 17
The neutral atom with an atomic number of 38 and 50 neutrons is...?
Tin - 50
Tin - 88
Strontium - 38
Strontium - 88
An atom with 29 protons and 36 neutrons is an isotope of ...?
Si
Cu
Kr
Cl
An atom of an element is electrically neutral because the
number of protons equals the number of electrons.
number of protons equals the number of neutrons.
number or neutrons equals the number of electrons.
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
An atom with 6 protons, 6 neutrons, and 6 electrons is an ion.
true
false
An atom with 8 protons, 8 neutrons, and 7 electrons is an ion.
true
false
An atom with 4 protons, 3 neutrons, 4 electrons is a ________.
cation
anion
neutral atom
An atom with 15 protons, 10 neutrons, 5 electrons has a charge of _______.
-10
+5
-5
+10
An atom with 7 protons, 6 neutrons, and 7 electrons has a charge of ____.
-1
+1
0
+7
An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.
+2
-2
+3
0
An atom with more electrons than protons is a _______.
cation
anion
neutral atom
An atom with less electrons than protons is a _____.
cation
neutral atom
anion
An atom with 12 protons, 10 neutrons, 11 electrons is a ____.
neutral atom
cation
anion
1s2 2s2 2p6 3s2
How many d orbitals are there in a given sublevel?
1
3
5
7
How many p orbitals are there in a sublevel?
2
1
4
3
What is this element?
1s22s22p63s23p64s23d104p6
Argon
Krypton
Selenium
Bromide
An arrangement that uses arrows to represent electrons is a(n)...
Electron configuration
Shorthand configuration
Lewis dot structure
Orbital diagram
How many s orbitals are there in a sublevel?
2
1
4
3
How many f orbitals are there in a given sublevel?
1
3
5
7
How many electrons can the s sublevel hold?
8
10
2
4
How many electrons can the p sublevel hold?
6
10
2
4
How many electrons can the f sublevel hold?
6
10
2
14
Electrons occupy orbitals of lowest energy first, is part of which electron orbital rule?
Hund’s Rule
Aufbau Principle
Pauli Exclusion Principle
Which shows the correct orbital diagram for Cobalt?
Click image to enlarge.
Electrons occupying the same orbital must have opposite spin, is part of which electron orbital rule?
Hund’s Rule
Aufbau Principle
Pauli Exclusion Principle
When adding electrons to orbitals in the same sublevel, electrons should remain unpaired if possible, is part of which electron orbital rule?
Hund’s Rule
Aufbau Principle
Pauli Exclusion Principle
Which orbital shows a violation of the Aufbau Principle?
A
B
C
D
Which orbital shows a violation of Pauli Exclusion Principle?
A
B
C
D
