Review Units 3 & 4
Authored by Alexis Zeiler
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When bonds are broken,
energy is released.
energy is supplied
a phase change is occurring.
a physical change is occurring.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Activation energy is...
the energy required to break a chemical bond
the energy required to make a chemical bond
all of the above
none of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
An ion is
an atom with equal number of protons and electrons.
an atom with equal number of protons and neutrons.
an atom with unequal number of protons and neutrons.
an atom with unequal number of protons and electrons.
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Ionization energy is
an atoms ability to hold onto core electrons
an atoms ability to hold onto valance electrons
an atoms ability to steal onto core electrons
an atoms ability to steal onto valance electrons
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Electronegativity is
an atoms ability to hold onto core electrons
an atoms ability to hold onto valance electrons
an atoms ability to steal onto core electrons
an atoms ability to steal onto valance electrons
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In general, as you move down a group,
atomic radius increases.
electronegativity decreases.
ionization energy decreases.
all of the above.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following elements has the greatest atomic radius?
Be
Mg
Ca
Sr
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