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Midterm Review Chemistry I Flashcards | StudBud
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Midterm Review Chemistry I
Midterm Review Chemistry I
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1
The total number of protons and neutrons in the nucleus of an atom is the
atomic mass
atomic radius
atomic number
mass number
2
How many unpaired electrons are in a O atom?
0
1
3
2
3
Name the compound SF
6
sulfur hexafluoride
monosulfur fluoride
sulfur heptafluoride
sulfur fluroide
4
What is the
net charge
of the ionic compound calciumfluoride (CaF
2
)?
0
1+
2-
1-
5
Which type of ionizing radiation is represented by the symbol
0
-1
e?
infrared
gamma
alpha
beta
6
What is the charge of an Al ion?
+
3+
3-
2+
7
Which of the following is the most polar?
H-N
H-H
H-Cl
Br-Br
8
Which of the following measurements contains two significant figures?
0.0044 mL
0.00400 mL
0.00404 mL
0.000440 mL
9
Which of the following is true about subatomic particles?
Protons are positivelycharged and the lightest particle.
The mass of a neutronnearly equals the mass of a proton.
Electrons are negatively charged and the heaviest particle.
Neutrons have no charge andare the lightest particle.
10
The correct symbol for carbon-12 is
C-6
612C
126C
126Ca
11
What is the electron configuration for F?
1s22s7
1s22s22p5
1s2
1s22s22p6
12
A hydrocarbon with 2 carbons and all single covalent bonds would be called:
methane
ethane
butane
propane
13
Isotopes have the:
same electrons different protons
same neutrons different protons
same protons different electrons
same protons different neutrons
14
According to the VSEPR theory, the shape of water is:
bent
linear
tetrahedral
trigonal planar
15
Which is most likely to form an ionic bond?
Cl and F
Na and Cl
S and O
Mg and Al
16
Which of the following has the highest electronegativity?
Cl
Br
F
I
17
Molecular compounds are made up of which types of elements?
2 or more metals
metalloids only
2 or more nonmetals
metal and a nonmetal
18
The mass of an alpha particle is:
4 amu
2 amu
1 amu
1.8 x 1034
19
The modern periodic tableis organized with the elements in order of increasing
atomic number
atomic mass
nuclear number
quantum number
20
In a nuclear reaction (fission), where mass is lost, what is the lost mass converted into?
energy
volume
grams
light
21
Name the compound MgO
magnesium oxide
mono magnesium monoxide
magnesium oxygen
magnesium monoxide
