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Chemistry Unit 3 & 4 Review Flashcards | StudBud
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Chemistry Unit 3 & 4 Review
Chemistry Unit 3 & 4 Review
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1
single bonds share...?
2 electrons
123456789 electrons
1 electron
4 electrons
2
Cation
Two ions combined together.
Positively charged
3
What is the molecular geometry?
Tetrahedral
Bent
Trigonal Planar
Linear
4
Anion
Ions + neutrons
Negatively charged
5
double bonds share...?
4 electrons
123456789 electrons
2 electrons
3 electrons
6
Which sequence of atomic numbers represents elements that have similar chemical properties?
9, 16, 33, 50
3, 12, 21, 40
19, 23, 30, 36
4, 20, 38, 88
7
What is the electron configuration of Krypton?
[Ar]4s24p64d10
1s22s22p63s23p63d104s24p6
1s22s22p63s23p64s23d104p6
1s22s23s23p64s23d104p6
8
Ionic Bonds are bonds between:
Metal and Metal
Metal and Non-Metal
Non-Metal and Non-Metal
9
Name the following chemical formulas: N
2
0 and KF.
Nitrogen Monoxide, Potassium Fluoride
Nitrogen Oxide, Monopotassium Mono Fluoride
Dinitrogen Oxide, Potassium Monofluoride
Dinitrogen Monoxide, Potassium Fluoride
10
Covalent Bonds are bonds between:
Non-Metal and Non-Metal
Metal and Non-Metal
Metal and Metal
11
What is the electron configuration for Chromium?
1s22s22p63s23p64s4
1s22s22p63s23p54s24d4
1s22s22p63s23p6
1s22s22p63s23p64s2 3d4
12
What affects the molecular geometry of a compound?
The bonds only
Both the bonded and lone pairs
Neither the bonds or the lone pairs
The lone pairs only
13
Name the following compound: C
2
H
4
Carbon dihydride
Carbon hydride
Tetracarbon dihydride
Dicarbon tetrahydride
14
What is the difference between Ionic bonds and Covalent bonds?
Ionic bonds lead to the creation of stable molecules and Covalent does not
Their name
yes
Ionic bonds transfer electrons and Covalent bonds share electrons
15
Atomic radii ___ down a group
decrease
increase
16
The elements copper and iron are found in the section of the periodic table for —
alkali metal
transition metal
alkali earth metals
metalloids
17
The Aufbau principle states that...
Electrons must be paired with opposite spins.
The lowest available energy level is filled first.
Every orbital on an energy level needs an electron.
18
Name the following compound: CF
4
Carbon Fluorine
Carbon Fluoride
Monocarbon tetrafluoride
Carbon tetrafluoride
19
Which periodic table trends follow the same pattern?
Electronegativity and ionic radius
Electronegativity and ionization energy
Electronegativity and atomic radius
20
Covalent Bonds:
Share Electrons
Give/Take Electrons
Split Electrons
21
Determine the molecular geometry of CH
4
.
Linear
Trigonal planar
Trigonal Pyramidal
Tetrahedral
22
Hunds Rule states that...
electrons must pair up with opposite spins.
electrons like to have high energy.
electrons like to be in the lowest energy possible.
e- go into empty, equal energy orbitals before pairing up.
23
Chlorine Lewis Dot Structure?
False
True
24
What is electron configuration?
Electron configuration.
The crimson chin
A political theory derived from Karl Marx, advocating class.
Distributions of electrons throughout an atom or molecule
25
This is a Lewis Dot Structure for _____________.
Oxygen
Nitrogen
Boron
Carbon
26
What is molecular geometry?
Linear
Trigonal Planar
Bent
Tetrahedral
27
What is the electron configuration for Neon?
1s22s22p6
1s22s22p63s2
1s22s2
1s22s22p3
28
The purpose of the VSPER theory is:
predict electronegativity
find the boiling point
determine polarity
predict shapes of molecules
