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Semester Final Review #2
Test Description: Additional review questions
Instructions: Answer all questions to get your test result.
1) Elements that can be pounded into thin sheets are
A
semiconductors
B
metalloids
C
metals
D
non-metals
2) Most nonmetals are
A
gases
B
good conductors
C
brittle
3) In the modern periodic table (ours) the elements are arranging in order of increasing
A
atomic mass
B
atomic diameter
C
atomic number
4) The formula for density is ______.
A
D – m = V
B
D = m/V
C
D – V = m
D
D = V/m
5) The atomic number of an isotope is the number of ______.
A
neutrons and protons
B
neutrons
C
electrons and protons
D
protons
6) J. J. Thomson used the fact that ______ charges attract each other in his cathode-ray tube experiment.
A
atomic
B
neutral
C
opposite
D
like
7) ______ contain(s) only one kind of atom.
A
Elements
B
Chemicals
C
Matter
D
Radioactive material
8) A proton
A
is a negative particle in the nucleus of the atom
B
is a neutral particle in the nucleus of the atom
C
is a positive particle in the nucleus of the atom
D
is a positive particle in the electron cloud of the atom
9) An electron
A
is a negative particle in the electron cloud of the atom
B
is a negative particle in the nucleus of the atom
C
is a neutral particle in the nucleus of the atom
D
is a positive particle in the nucleus of the atom
10) A neutron
A
is a negative particle in the electron cloud of the atom
B
is a negative particle in the nucleus of the atom
C
is a neutral particle in the nucleus of the atom
D
is a positive particle in the nucleus of the atom
11) How many shells does Potassium have?
A
3
B
2
C
4
D
1
12) How many valence electrons does Krypton have?
A
8
B
2
C
4
D
6
13) What is the atomic number of Magnesium?
A
12
B
3
C
24
D
2
14) What is the atomic mass of Iodine?
A
6
B
7
C
53
D
127
15) Why put data into a table during an experiment?
A
To organize
B
To test a hypothesis
C
To share data
16) A student sorted 6 elements. He placed iron, silver and sodium in group A. He placed neon, oxygen and nitrogen in group B. What is 1 other element that fits into group B?
A
Fluorine
B
Lithium
C
Magnesium
17) A student sorted 6 elements. He placed iron, silver and sodium in group A. He placed neon, oxygen and nitrogen in group B. Which is 1 other element that could fit into group A?
A
gold
B
chlorine
C
hydrogen
18) Each atom of protium has 1 proton, 0 neutrons and 1 electron. Each atom of deuterium has 1 proton, 2 neutrons and 1 electron. Are these the same or different elements?
A
different
B
same
19) Melting the butter results in ____.
A
endothermic reaction
B
chemical change
C
physical change
D
exothermic reaction
20) Baking the bread in the oven causes ____.
A
nuclear change
B
chemical change
C
no change
D
physical change
*select an answer for all questions
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