Covalent Bonds — Unit test Answers
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This chart shows characteristics of three different types of atoms.
A
Atom X will donate electrons to Atom Y.B
Atom X will accept electrons from Atom Y.C
Atom Y will accept electrons from Atom Z.D
Atom Z will donate electrons to Atom X.22
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Lead is malleable, so it can be pounded into flat sheets without breaking. How does the bonding within lead help to explain this property?
A
Metallic bonds involve valence electrons that are removed from one atom and given to another, so the pounding helps the electrons move.B
Covalent bonds involve valence electrons that are shared between two metal atoms, so the bonds are strong enough to resist the pounding.C
Metallic bonds involve many valence electrons shared by many atoms, so the bonds can move around as the metal is pounded.D
Covalent bonds involve valence electrons that are removed from one atom and given to another, so the pounding helps the electrons move.23
The electron dot diagram shows the arrangement of dots without identifying the element.
A
boron (B)B
neon (Ne)C
rubidium (Rb)D
arsenic (As)24
Which is most likely a covalent compound?
A
NaClB
KClC
CuF2D
CF425
Which of these is a compound?
A
OB
CO2C
O2D
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