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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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A review of the Periodic Table for 9th grade Physical Science.
Flashcards
40 cards
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Practice quiz
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Questions
40
Answers
1
What is the atomic mass of germanium?
73
72.64
72
32
2
How many electrons does a neutral atom of neon have?
20
10
18
2
3
What do we call the number of protons an element has?
isotope
atomic mass
mass number
atomic number
4
Where are the metals?
B
C
A
5
What determines the element?
atomic number
mass number
atomic mass
6
To which group does sodium belong?
Alkaline Earth metals
Alkali metals
Transition metals
Halogens
7
How many protons does U-235 have?
143
235
92
135
8
To which group does titanium belong?
Halogens
Transition Metals
Alkaline Earth Metals
Alkali metals
9
What are the different forms of atoms with different numbers of neutrons called?
isotopes
isomers
isosceles
neutronics
10
What is the atomic number of aluminum?
26
27
13
27.982
11
Which group has 7 valence electrons?
transition metals
alkaline earth metals
noble gases
halogens
12
What color are the noble gases?
turquoise
green
yellow-orange
gray-purple
13
What is the most common mass number of lithium?
7
6.941
6
14
How many neutrons does iron-56 have?
55.85
26
56
30
15
To which group does calcium belong?
Alkaline Earth metals
Alkali metals
Halogens
Transition metals
16
Which elements are semiconductors?
Metalloids
Nonmetals
Metals
17
What is the atomic mass of lithium?
7
3
6.941
6
18
Americium and uranium are
Lanthanides
Actinides
19
What particle has the smallest mass?
proton
neutron
electron
20
Which elements corrode easily?
Metalloids
Nonmetals
Metals
21
How many neutrons does the most common isotope of cesium have?
133
77
78
55
22
Where are the nonmetals?
B
C
A
23
Which elements are the best conductors of heat and electricity?
Nonmetals
Metalloids
Metals
24
What particle is in the nucleus and has no charge?
neutron
electron
proton
25
How many neutrons does the most common isotope of chlorine have?
17
19
35
18
26
What is the weighted average of the mass numbers of the isotopes of an element?
mass number
valence electrons
atomic mass
atomic number
27
What element has 4 energy levels and 3 valence electrons?
Gallium
Germanium
Boron
Silicon
28
What color are the transition metals?
red
yellow orange
blue
green
29
Where is most of the volume of an atom?
electron cloud
nucleus
30
How many valence electrons does phosphorus have?
4
6
3
5
31
This element is a metalloid by position but is considered a metal because it is metallic
boron
aluminum
silicon
germanium
32
What word means "can be drawn into thin wires"?
malleable
ductile
bendy
33
What particle has a positive charge?
electron
proton
neutron
34
What do we call the number of protons plus the number of neutrons in an atom?
atomic mass
atomic number
rational number
mass number
35
Where is most of the mass of an atom?
nucleus
electron cloud
36
What is the halogen with 5 energy levels?
Astatine
Rubidium
Iodine
Xenon
37
To which group does krypton belong?
Noble gases
Transition Metals
Halogens
Lanthanides
38
What color are the halogens?
yellow-orange
turquoise
red
gray-purple
39
What was Mendeleev's periodic table arranged by?
number of neutrons
atomic number
atomic mass
mass number
40
How many neutrons does H-2 have?
0
2
1
