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Chapter 4 Test
Test Description: Chapter 4
Instructions: Answer all questions to get your test result.
1) What does the word atom mean?
A
unable to be divided
B
can be divided into many pieces
2) What scientist FIRST stated that matter was made up of atoms?
A
Democritus
B
Rutherford
3) In 1808, what scientist authored the modern atomic theory?
A
Dalton
B
Bohr
4) Who discovered the nucleus?
A
Rutherford
B
Chadwick
5) Who discovered that electrons orbit a nucleus?
A
Dalton
B
Bohr
6) Who discovered the neutron?
A
Rutherford
B
Chadwick
7) What is the center of an atom called?
A
atom
B
nucleus
8) What is inside the nucleus?
A
protons and neutrons
B
protons
C
neutrons and electrons
D
protons and electrons
9) What charge does a proton have?
A
neutral
B
positive
C
negative
10) What charge does an electron have?
A
positive
B
neutral
C
negative
11) What charge does a neutron have?
A
positive
B
neutral
C
negative
12) What are valence electrons?
A
Electrons in outer most energy level
B
Electrons that orbit an atom
13) Can the exact location of an electron be known?
A
yes
B
no
14) How many electrons fit in the 1st energy level?
A
1
B
8
C
2
D
18
15) How many electrons fit in the 2nd energy level?
A
18
B
2
C
8
D
1
16) How many electrons fit in the 3rd energy level?
A
8
B
18
C
2
D
1
17) What does the atomic number tell you?
A
number of protons and electrons
B
number of protons
C
number of neutrons
D
number of electrons
18) How do you determine the number of neutrons?
A
atomic number - atomic mass
B
atomic mass - atomic number
C
atomic mass
D
atomic number
19) What are the three general classifications on the periodic table?
A
metals, nonmetals, metalloids
B
alkali metals, alkaline earth metals, transition metals
C
metals, nonmetals, transition metals
20) Where are the alkali metals located?
A
Group 1
B
Group 17
C
Group 18
D
Group 2
*select an answer for all questions
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