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Unit 3 Test Review
Unit 3 Test Review
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A #chemistry review for #periodic table and #electron configuration
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
________ is when lower-level orbitals protect higher-level orbitals from the nucleus's pull.
shielding
valence
ionization
electronegativity
2
Which element is represented by this electron configuration:
1s
2
2s
2
2p
6
3s
1
?
Mg
Na
Al
K
3
Which of the following atoms will have the
highest
electronegativity?
Fr
Ge
Fe
S
4
All
noble gases
except for _________ have 8 valence electrons.
He
Ar
Xe
Ne
5
Which of these elements is a
halogen
?
Br
Ar
Ca
Rb
6
Which of the following lists correctly represents how many electrons can fit in each type of orbital?
s: 2; p: 6; d: 10; f: 14
s: 1; p: 3; d: 5; f: 7
s: 6; p: 8; d: 10; f: 12
s: 14; p: 10; d: 6; f: 2
7
Any one individual orbital, regardless of energy level, can hold a maximum of _____ electrons.
2
10
1
6
8
What is the electron configuration of
calcium
(Ca)?
1s22s22p63s2
1s22s22p63s23p64s2
1s22s22p63s23p6
1s22s22p63s23p64s24p6
9
How many valence electrons do
halogens
have?
8
1
2
7
10
Given the configuration
1s
2
2s
2
2p
6
3s
2
3p
6
4s
1
, how many
valence electrons
does this atom have?
2
8
1
6
11
What is the electron configuration of
oxygen
(O)?
1s22s22p5
1s22s22p6
1s22s22p63s23p4
1s22s22p4
12
The amount of energy required to remove the first electron from an atom is its __________.
shielding effect
first ionization energy
electronegativity
kinetic energy
13
What is the
maximum
number of valence electrons that any atom can have?
8
2
10
6
14
The
electronegativity
of an atom is _____________.
when lower orbitals protect higher ones from the nucleus
the energy required to remove the first electron
the outermost electrons of an atom
the attraction that an atom has for electrons during bonding
15
Rank these elements in order of
increasing
atomic radius (
low
->
high
):
Ca
,
Ba
,
Be
,
Mg
Mg, Ba, Be, Ca
Ba, Ca, Mg, Be
Be, Mg, Ca, Ba
Ca, Be, Mg, Ba
16
Which of the following is an
alkali metal
?
K
Fe
Mg
H
17
Rank these elements in order of
decreasing
electronegativity (
high
->
low
):
Hg
,
Br
,
Te
,
Rh
.
Br, Te, Hg, Rh
Br, Hg, Rh, Te
Te, Rh, Br, Hg
Rh, Hg, Te, Br
18
Rank these elements in order of
increasing
first ionization energy (
low
->
high
):
Ga
,
N
,
Os
,
Ni
Os, Ni, Ga, N
N, Ni, Os, Ga
Ga, N, Os, Ni
N, Ga, Ni, Os
19
Which of the following elements could be represented by this electron dot structure?
Argon (Ar)
Potassium (K)
Phosphorus (P)
Magnesium (Mg)
20
What is the electron configuration of
sulfur
(S)?
1s22s22p63s23p2
1s22s22p63s23p4
1s22s22p63s23p6
1s22s22p63s2
21
Which one of these orbital diagrams is an example of properly filled
s
and
p
sublevels?
a
b
c
d
22
Which of the following elements will have the
smallest atomic radius (size)?
F
As
Mo
Mg
23
Which of the following lists correctly represents the maximum number of each type of orbital in a shell?
s: 7; p: 5; d: 3; f: 1
s: 2; p: 2; d: 2; f: 2
s: 2; p: 6; d: 10; f: 14
s: 1; p: 3; d: 5; f: 7
24
How many valence electrons does
Boron
(B) have?
13
2
8
3
25
Which orbital diagram does not violate any of the filling rules?
c
a
b
d
