Chapter 4 Test Question Preview (ID: 16528)
Chapter 4.
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What does the word atom mean?
a) can be divided into many pieces
b) unable to be divided
c)
d)
What scientist FIRST stated that matter was made up of atoms?
a) Rutherford
b) Democritus
c)
d)
In 1808, what scientist authored the modern atomic theory?
a) Dalton
b) Bohr
c)
d)
Who discovered the nucleus?
a) Chadwick
b) Rutherford
c)
d)
Who discovered that electrons orbit a nucleus?
a) Bohr
b) Dalton
c)
d)
Who discovered the neutron?
a) Chadwick
b) Rutherford
c)
d)
What is the center of an atom called?
a) atom
b) nucleus
c)
d)
What is inside the nucleus?
a) protons and electrons
b) protons
c) protons and neutrons
d) neutrons and electrons
What charge does a proton have?
a) positive
b) negative
c) neutral
d)
What charge does an electron have?
a) positive
b) negative
c) neutral
d)
What charge does a neutron have?
a) positive
b) negative
c) neutral
d)
What are valence electrons?
a) Electrons in outer most energy level
b) Electrons that orbit an atom
c)
d)
Can the exact location of an electron be known?
a) yes
b) no
c)
d)
How many electrons fit in the 1st energy level?
a) 1
b) 2
c) 8
d) 18
How many electrons fit in the 2nd energy level?
a) 1
b) 2
c) 8
d) 18
How many electrons fit in the 3rd energy level?
a) 1
b) 2
c) 8
d) 18
What does the atomic number tell you?
a) number of protons
b) number of electrons
c) number of protons and electrons
d) number of neutrons
How do you determine the number of neutrons?
a) atomic number - atomic mass
b) atomic mass - atomic number
c) atomic number
d) atomic mass
What are the three general classifications on the periodic table?
a) metals, nonmetals, metalloids
b) metals, nonmetals, transition metals
c) alkali metals, alkaline earth metals, transition metals
d)
Where are the alkali metals located?
a) Group 1
b) Group 2
c) Group 17
d) Group 18
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