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Semester 1 Final Review
Test Description: Chemistry review for Semester 1 Final
Instructions: Answer all questions to get your test result.
1) Which of the following element would have only TWO dots in its Lewis Dot diagram?
A
Na
B
Al
C
Cl
D
Mg
2) Which of the following pair of elements would make a covalent bond?
A
sulfur and oxygen
B
sodium and chlorine
C
magnesium and nitrogen
D
lithium and oxygen
3) An oxygen ion would usually have a charge of ____.
A
+1
B
+2
C
-2
D
-1
4) Nitrogen has ____ valence electrons.
A
5
B
3
C
7
D
4
5) A metal and a nonmetal usually form a(n) ______.
A
anion
B
cation
C
ionic bond
D
covalent bond
6) Which atom is most likely to have the largest atomic radius?
A
Na
B
S
C
Cl
D
Al
7) The octet rule states that in order for an atom to be stable, ____.
A
it must have 8 electrons in the outermost energy level.
B
it must have 8 neutrons in the outermost energy level.
C
it must have 10 valence neutrons.
D
it must have 10 valence electrons.
8) If an atom GAINS an electron, ____.
A
it has a charge of -1.
B
its charge remains unchanged.
C
it is a cation.
D
it has a charge of +1.
9) If an atom LOSES 2 electrons, ____.
A
its charge can either be +2 or -2.
B
its charge is still 0.
C
it has a charge of -2.
D
it has a charge of +2.
10) An atom with 12 electrons, 12 protons, and 11 neutrons would have a mass number of ____.
A
11
B
24
C
12
D
23
11) Based on their locations on the periodic table, which pair of elements have the most similar characteristics?
A
Be and Bi
B
Si and Cl
C
Ne and Ar
D
Ca and Cu
12) Which of the following is classified as a metal?
A
carbon
B
sodium
C
sulfur
D
nitrogen
13) Which element is located in group 1 of the periodic table?
A
B
B
K
C
Be
D
He
14) The noble gases helium, neon, argon and krypton are all located in group 18 of the periodic table. What can you predict about these elements, based on their group?
A
These elements are so stable they do not easily react with anything.
B
These elements are very common in the atmosphere
C
These elements are unstable and will easily react with metals to form anions.
D
These elements react with many non-metals to form cations.
15) The halogens are located where on the periodic table?
A
periods 6 and 7
B
group 17
C
group 18
D
group 1
16) As you move DOWN a period, what happens to the atomic radius?
A
atomic radius increases.
B
there is no change in atomic radius.
C
atomic radius decreases.
D
atomic radius changes randomly.
17) When moving from left to right across a period of the periodic table
A
the number of valence electrons increases and the number of energy levels stays the same
B
the number of energy levels and valence electrons decreases
C
the number of energy levels increases and the number of valence electrons stays the same
D
the number of energy levels and valence electrons increases
18) Which of the following has the greatest electronegativity?
A
phosphorus
B
nitrogen
C
sulfur
D
oxygen
19) Two elements are in the same row of the periodic table. The one on the right always ___.
A
has a greater atomic radius.
B
has more protons.
C
has fewer electrons.
D
has a lower ionization energy.
20) The periodic table is organized so chemists can easily see
A
The atomic number and weight of each element
B
The importance of each element
C
The smell and taste of each element
D
The color of each element
*select an answer for all questions
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