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Periodic Table/Classes of Elements Flashcards | StudBud
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Periodic Table/Classes of Elements
Periodic Table/Classes of Elements
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Physical Science 6.1-6.2
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Metalloids outer energy level is almost full so they
"want" to give up electrons to become reactive.
"want" to gain electrons to become reactive.
2
Metals are
dull, brittle and good for insulation
poor conductors of heat
semi conductors
ductile, malleable and shiny
3
The class of elements that do not conduct electricity is
metalloids.
semi conductors.
metals.
nonmetals.
4
Solid nonmetals are
ductile.
dull.
malleable.
semi conductors
5
Which of the following elements is a metalloid
helium.
phosphorus.
copper.
germanium.
6
The 3 classes of elements are arranged from left to right on the periodic table:
metalloids, nonmetals, metals
metals, metalloids, nonmetals.
nonmetals, metals, metalloids.
metals, nonmetals, metalloids
7
Most metals are
solids at room temperature
shiny.
good conductors of heat.
all of the above
8
Gold
Ag
Au
H
Cu
9
Ductile describes most
nonmetals.
metals.
metalloids.
10
Nonmetals tend to have properties that are
in between those of metals and metalloids.
more variable than the properties of metals.
none of the above.
very similar to the properties of metals.
11
The atomic number is
is the sum of electrons
is the sum of the number of protons and neutrons.
unique to each element and the number of protons of an atom.
similar to other elements with the same properties.
12
He
Hydrogen
Oxygen
Potassium
Helium
13
All metals are in the ___________ state at room temperature.
solid
liquid
14
Aluminum
H
C
AL
Al
15
Nonmetals are
poor conductors of heat
good conductors of heat
shiny
high melting points
16
The Modern Periodic Table of Elements is organized by the
electrons
atomic number
proton & neutrons
atomic mass
17
Metals
usually have an outer energy level that is full.
usually have an outer energy level that is almost empty.
18
Valance electrons are
electrons in the outer entry level.
carry a positive charge.
electrons that never move.
electrons in the inner level.
19
K
Potassium
Silver
Gold
Copper
20
Sodium is an element in the
metal class.
metalloid class.
nonmetal class.
21
Electrons in the outer energy level of an atom are called
metals.
nonmetals.
metalloids.
valence electrons.
22
The smallest class of elements are
nonmetals.
metalloids.
metals.
23
Mendleev organized the periodic table of elements by using the elements'
protons
atomic mass
atomic number
neutrons
24
A word that describes most solid nonmetals is
shiny.
conductor of heat.
brittle.
ductile.
25
The only nonmetal that is a liquid at room temperature is
bromine.
carbon
sulfur.
phosphorous.
26
Which of the following elements is a nonmetal
zinc.
silver.
sulfur
aluminum.
27
Which of the following is a metalloid:
Silicon, Si
Sulfur, S
Copper, Cu
Silver, Ag
28
What class of elements conducts electricity?
metals
nonmetals
metalloids
29
What is the only metal that is a liquid at room temperature?
lead
gold
mercury
silver
30
Ag
Silicon
Sulfur
Gold
Silver
31
Copper
Cu
Si
P
Al
32
If an element is ductile, this means that it can be
used as an insulator.
crushed into a powder.
pulled into long thing shapes.
used to conduct electricity.
33
Boron is an element in the
nonmetal class.
metal class.
metalloid class.
34
Medeleev predicted missing elements
True
False
35
Which element has a completely filled outer energy level?
lithium
fluorine
boron
neon
