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LOLCS Chem Ch7 Flashcards | StudBud
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LOLCS Chem Ch7
LOLCS Chem Ch7
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1
The main factor influencing the arrangement of ions in crystal lattice is
charge
position on periodic table
electronegativity
atomic radius
2
electron sea theory is a ionic bond
false
true
3
the polarity of the bond depends on the difference in the atoms'
electronegativities
ionization energies
atomic radii
electron affinities
4
all covalent molecules exhibit polarity
true
false
5
quartz & diamond are a network covalent substance
false
true
6
a mixture of atoms from multiple metal which has metallic properties is called an metalloid
true
false
7
why do atoms bond?
to gain stability & lose energy
to transfer electrons
to share electrons
to lose stability & gain energy
8
The central atom in a Lewis Structure is usually the atom
with the most electrons
that is a metal
with the greatest electronegativity
with the most unpaired electrons
9
total number of electrons in Lewis Structure must equal the total number of ___ electrons provided by atoms in molecule
paired
charged
polar
valence
10
what type of bond will Zn make?
covalent
polyatomic
metallic
ionic
11
chemical bonds between atoms involve the rearrangement of __ to maximize stability
protons
neutrons
electrons
neutrinos
12
predict formula unit of ionic compound that'll form from Ca & Cl
ClCa
CaCl
Ca2Cl2
CaCl2
13
metallic bonds have high electronegativity differences
true
false
14
which of the following molecules contains only single covalent bonds?
ClCN
Cl2O
SO2
F2CO
15
the dash in the Lewis Structure represents
unpaired electrons
3 electrons
four electrons
2 electrons
16
CsI is what type of bond?
metallic
ionic
covalent
all of these
17
PO
4
3-
is an example of what type of bond
metallic
covalent
ionic
polyatomic
18
a formula unit is the same thing as a molecule
false
true
19
if atoms listed below formed a covalent compound, which would be the central atom?
carbon
hydrogen
nitrogen
oxygen
20
2 or more atoms with high electron affinities is most likely a
covalent bond
ionic bond
metallic bond
delocalized
21
electrostatic force is the repulsion between opposite charges
false
true
22
which is not a diatomic molecule?
oxygen
hydrogen
nitrogen
carbon
