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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
metalloids
B
semiconductors
C
metals
D
non-metals
2) Most nonmetals are
A
brittle
B
gases
C
good conductors
3) In the modern periodic table (ours) the elements are arranging in order of increasing
A
atomic number
B
atomic diameter
C
atomic mass
4) The formula for density is ______.
A
D = V/m
B
D = m/V
C
D – V = m
D
D – m = V
5) The atomic number of an isotope is the number of ______.
A
neutrons
B
neutrons and protons
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
opposite
B
neutral
C
atomic
D
like
7) ______ contain(s) only one kind of atom.
A
Matter
B
Chemicals
C
Radioactive material
D
Elements
8) A proton
A
is a positive 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 electron cloud of the atom
D
is a negative particle in the nucleus of the atom
9) An electron
A
is a negative particle in the electron cloud of the atom
B
is a positive particle in the nucleus of the atom
C
is a negative particle in the nucleus of the atom
D
is a neutral particle in the nucleus of the atom
10) A neutron
A
is a positive particle in the nucleus of the atom
B
is a neutral particle in the nucleus of the atom
C
is a negative particle in the electron cloud of the atom
D
is a negative particle in the nucleus of the atom
11) How many shells does Potassium have?
A
1
B
4
C
3
D
2
12) How many valence electrons does Krypton have?
A
6
B
2
C
4
D
8
13) What is the atomic number of Magnesium?
A
12
B
24
C
2
D
3
14) What is the atomic mass of Iodine?
A
127
B
53
C
6
D
7
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
Magnesium
B
Lithium
C
Fluorine
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
hydrogen
B
chlorine
C
gold
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
exothermic reaction
B
endothermic reaction
C
physical change
D
chemical change
20) Baking the bread in the oven causes ____.
A
chemical change
B
nuclear change
C
physical change
D
no change
*select an answer for all questions
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