Atomic Structure

1
What is the nuclear charge of an iron atom?
iRespond Question
Multiple Choice
F
A.) 26
Iron has 26 protons in the nucleus each with a
charge of 1. Neutrons have no charge.
Electrons are outside of the nucleus.
B.) 30
C.) 56
D.) 82
E.)
2
What is the total number of electrons in a
completely filled fourth principal energy level?
iRespond Question
Multiple Choice
F
A.) 8
2n2 2(42) 2(16) 32
B.) 10
C.) 16
D.) 32
E.)
3
How do the energy and the most probable location
of an electron in the third shell of an atom
compare to the energy and the most probable
location of an electron in the first shell of the
same atom?
iRespond Question
Multiple Choice
F
A.) In the third shell, an electron has more
energy and is closer to the nucleus.
B.) In the third shell, an electron has more
energy and is farther from the nucleus.
C.) In the third shell, an electron has less
energy and is closer to the nucleus.
D.) In the third shell, an electron has less
energy and is farther from the nucleus.
E.)
4
How many protons, electrons, and neutrons does an
atom of Tin have?
iRespond Question
Multiple Choice
F
A.) 50 protons, 50 electrons, 50 neutrons
B.) 50 protons, 50 electrons, 69 neutrons
C.) 50 protons, 69 electrons, 50 neutrons
D.) 50 protons, 69 electrons, 69 neutrons
E.) none of the above
5
What is the total number of electrons found in an
atom of sulfur?
iRespond Question
Multiple Choice
F
A.) 6
Sulfur has an atomic number of 16 (16 protons).
It will have an equal number of electrons to
balance the charge.
B.) 8
C.) 16
D.) 32
E.)
6
How many energy sublevels are in the second
principal energy level?
iRespond Question
Multiple Choice
F
A.) 1
Each energy level as many sublevels as its
number. The second energy level has 2 (s and p)
B.) 2
C.) 3
D.) 4
E.)
7
What types of atomic orbitals are in the third
principal energy level?
iRespond Question
Multiple Choice
F
A.) s and p only
Each energy level has as many sublevels as its
number. The third energy level has 3.
B.) p and d only
C.) s, p, and d only
D.) s, p, d, and f
E.)
8
Which sublevel contains a total of 5 orbitals?
iRespond Question
Multiple Choice
F
A.) s
1 3 5 7
B.) p
C.) d
D.) f
E.)
9
The total number of orbitals in a p sublevel is
iRespond Question
Multiple Choice
F
A.) 1
s p d f
B.) 3
C.) 5
D.) 7
E.)
10
Which principal energy level has no f sublevel?
iRespond Question
Multiple Choice
F
A.) 3
Each energy level has as many sublevels as its
number. The third energy level only has 3
sublevels (s,p, and d)
B.) 4
C.) 5
D.) 6
E.)
11
What is the maximum number of electrons that can
be found in an energy levels p sublevel?
iRespond Question
Multiple Choice
F
A.) 2
B.) 3
The p sublevel has 3 orbitals, each of which can
hold a maximum of 2 electrons
C.) 5
D.) 6
E.) 10
12
How many electrons are present in the atom with
electronic structure 1s22s22p63s1?
iRespond Question
Multiple Choice
F
A.) 88
The superscripts represent the number of electrons
B.) 8
C.) 6
D.) 11
E.) 12
13
Which orbital notation represents a boron atom in
the ground state?
iRespond Question
Multiple Choice
F
Must fill lowest energy level first
Must fill lowest energy level first
Must fill lowest energy level first
E.)
A.) 1
B.) 3
C.) 4
D.) 5
14
Assuming that the atom is neutral, identity the
element with electronic structure
1s22s22p63s23p64s2
iRespond Question
Multiple Choice
F
A.) K
The superscripts add up to 20 electrons.
B.) Ar
C.) Ca
D.) Mg
E.) Cr
15
If an atom has 13 electrons, which of the
following represent the electron configuration?
iRespond Question
Multiple Choice
F
A.) 1s22s22p63s23p6
Superscripts must add up to 13
B.) 1s22s22p63s23p1
C.) 1s22s22p63s23p4
D.) 1s22s22p63s23p2
E.)
16
Which one of the following represents the energy
level diagram for carbon?
iRespond Question
Multiple Choice
F
A
C
Aufbau / Hund
Aufbau
B
D
Hund
E.)
A.)
B.)
D.)
C.)
17
In the electron cloud model, an orbital is a
region of space in an atom where there is
iRespond Question
Multiple Choice
F
A.) a high probability of finding an electron
B.) a high probability of finding a neutron
C.) a circular path in which electrons are found
D.) a circular path in which neutrons are found
E.)
18
What is the next atomic orbital in the series 1s,
2s, 2p, 3s, 3p?
iRespond Question
Multiple Choice
F
A.) 2d
B.) 3d
C.) 3f
D.) 4s
E.)
19
What is the highest energy level assigned to an
electron in an atom of zinc in the ground state?
iRespond Question
Multiple Choice
F
A.) 1
Zinc is in the fourth row and has electrons in
four energy levels
B.) 2
C.) 3
D.) 4
E.)
20
Locate in the periodic table the element that has
the first 4d electron.
iRespond Question
Multiple Choice
F
A.) Sc
B.) La
C.) Ga
D.) Y
E.) K
21
What is the electron configuration of potassium?
iRespond Question
Multiple Choice
F
2p2 and only 11e-
A.) 1s22s22p23s23p24s1
1s1 and only 18e-
B.) 1s12s22p103s23p3
No 2p and only 13e-
C.) 1s22s23s23p63d1
D.) 1s22s22p63s23p64s1
E.)
22
What is the electron configuration of a Mn atom
in the ground state?
iRespond Question
Multiple Choice
F
A.) 1s22s22p63s2
Only 12e-
B.) 1s22s22p63s23p64s23d5
C.) 1s22s22p63s23p64s13d54p1
4s1 and 3d5
D.) 1s22s22p63s23p63d7
4s before 3d
E.)
23
What is represented by the dots in a Lewis
electron dot diagram of an atom of an element in
Period 2 of the Periodic Table?
iRespond Question
Multiple Choice
F
A.) the number of neutrons in the atom
B.) the number of protons in the atom
C.) the number of valence electrons in the atom
D.) the total number of electrons in the atom
E.)
24
What is the total number of valence electrons in
an atom of boron in the ground state?
iRespond Question
Multiple Choice
F
A.) 1
B.) 3
C.) 5
D.) 7
E.)
25
How many electrons are in the outermost principal
energy level of an atom of carbon in the ground
state?
iRespond Question
Multiple Choice
F
A.) 2
B.) 3
C.) 4
D.) 6
E.)
26
What is the total number of valence electrons in
an atom of sulfur in the ground state?
iRespond Question
Multiple Choice
F
A.) 3
B.) 4
C.) 6
D.) 8
E.)
27
Which of the following atoms has three unpaired
electrons?
iRespond Question
Multiple Choice
F
A.) Boron
B
B.) Carbon
C
C.) Nitrogen
N
D.) Oxygen
O
E.)
28
Which electron-dot symbol represents an atom of
chlorine in the ground state?
iRespond Question
Multiple Choice
F
E.)
A.) 1
B.) 1
C.) 1
D.) 1
29
Compared to a sodium atom in the ground state, a
sodium atom in the excited state must have
iRespond Question
Multiple Choice
F
There is not change in the number of electrons,
just their location
A.) a greater number of electrons
B.) a smaller number of electrons
C.) an electron with greater energy
D.) an electron with less energy
E.)
30
Which electron configuration is possible for a
nitrogen atom in the excited state?
iRespond Question
Multiple Choice
F
A.) 1s22s22p3
Ground
B.) 1s22s22p23s1
C.) 1s22s22p4
Oxygen
D.) 1s22s22p2
Carbon
E.)
31
Which electron configuration represents a
potassium atom in the excited state?
iRespond Question
Multiple Choice
F
A.) 1s22s22p63s23p3
Phosphorous
B.) 1s22s22p63s13p4
Excited Phosphorous
C.) 1s22s22p63s23p64s1
Chlorine
D.) 1s22s22p63s23p54s2
E.)
32
Which electron transition represents a gain of
energy?
iRespond Question
Multiple Choice
F
The farther from the nucleus the greater the
energy
A.) from 2nd to 3rd shell
B.) from 2nd to 1st shell
C.) from 3rd to 2nd shell
D.) from 3rd to 1st shell
E.)
33
The characteristic bright-line spectrum of an
element occurs when electrons
iRespond Question
Multiple Choice
F
A.) move from lower to higher energy levels
B.) move from higher to lower energy levels
C.) are lost by a neutral atom
D.) are gained by a neutral atom
E.)
High to low releases energy
34
The characteristic spectral lines of elements are
caused when electrons in an excited atom move from
iRespond Question
Multiple Choice
F
A.) lower to higher energy levels, releasing
energy
B.) lower to higher energy levels, absorbing
energy
C.) higher to lower energy levels, releasing
energy
D.) higher to lower energy levels, absorbing
energy
E.)
35
Electron X can change to a higher energy level or
a lower energy level. Which statement is true of
electron X?
iRespond Question
Multiple Choice
F
A.) Electron X emits energy when it changes to a
higher energy level.
B.) Electron X absorbs energy when it changes to
a higher energy level.
C.) Electron X absorbs energy when it changes to
a lower energy level.
D.) Electron X neither emits nor absorbs energy
when it changes energy level.
E.)
36
Which of the following quantum leaps would be
associated with the greatest energy of emitted
light?
iRespond Question
Multiple Choice
F
A.) n 5 to n 1
B.) n 4 to n 5
C.) n 2 to n 5
D.) n 5 to n 4
E.)
37
The atomic emission spectra of a sodium atom on
Earth and of a sodium atom in the sun would be
iRespond Question
Multiple Choice
F
A.) the same
B.) different from each other
C.) the same as those of several other elements
D.) the same as each other only in the
ultraviolet range
Each element has a unique spectra that is
unchanged based on locations
E.)
38
Which two elements are present in the unknown
spectra below?
iRespond Question
Multiple Choice
F
A.) Li H
B.) Li Na
C.) H He
D.) Li He
E.)