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Chem: Unit 2 Review Flashcards | StudBud
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Chem: Unit 2 Review
Chem: Unit 2 Review
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Test 2: Density and the Periodic Table
Flashcards
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Questions
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Answers
1
Which element is in the same group as chlorine?
copper
magnesium
fluorine
hydrogen
2
The modern periodic table is arranged in order of increasing atomic
charge
number
mass
radius
3
All atoms are
negatively charged
positively charged
neutral
4
What is the smallest particle of an element that retains the properties of that element?
atom
electron
neutron
proton
5
Isotopes of the same element have different
atomic symbols
atomic numbers
number of protons
number of neutrons
6
Which element is a metalloid?
Rb
He
Br
Ge
7
Density is found by dividing
mass by length
volume by mass
mass by volume
area by mass
8
The alchemists were trying to
get rich
all of these
turn lead into gold
become famous
9
Which element is a non-metal?
Ra
W
Br
Hg
10
Atomic number equals
number of neutrons
number of protons and neutrons
number of protons
number of electrons
11
How are the number of neutrons in the nucleus of an atom calculated?
subtract the number of electrons from the number of protons
add the atomic mass to the number of electrons
add the number of electrons and protons together
subtract the atomic number from the atomic mass
12
What does the number 84 in the name krypton-84 represent?
atomic mass
sum of protons and electrons
atomic number
13
What particles form the nucleus of an atom?
protons and electrons
protons and neutrons
electrons and neutrons
electrons only
