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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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categories of elements on the periodic table
Flashcards
45 cards
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Practice quiz
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Questions
45
Answers
1
Which of these elements has the smallest atomic number?
Cl
Cu
Ca
Cs
2
Which element would be classified as a metal?
S
Xe
Cs
Te
3
Most of the elements on the periodic table are classified as:
nonmetals
semimetals
metalloids
metals
4
Which group of elements are very reactive & soft and shiny & never found uncombined in nature?
transition metals
metalloids
alkali metals
halogens
5
How are the noble gases different from the other elements?
their outer energy level is full
# electrons < # protons
# electrons > # protons
# electrons = # protons
6
How many energy levels are there for the element K?
2
4
3
1
7
What do periods tell you about the structure of an atom?
the number of electrons in the outermost energy level
the number of electrons in the lowest energy level
the number of valence electrons
the number of energy levels
8
What do Roman Numeral groups tell you about the structure of an atom?
the number of electrons in the lowest energy level
the number of valence electrons
the number of electrons in the innermost energy level
the number of energy levels
9
How many valence electrons does bromine have?
7
4
5
17
10
As what can you classify the element lithium?
metal
nonmetal
metalloid
11
Which pair of elements has the same number of valence electrons?
B and In
Sr and Kr
S and Pb
In and Kr
12
Which group of elements are dull, brittle, and poor conductors?
metals
metalloids
lanthanides
nonmetals
13
How many electrons are there in the outermost energy level for K?
4
2
1
3
14
Which of these elements has the largest atomic number?
B
Kr
U
Pb
15
Which element would be classified as a noble gas?
Sr
Po
Kr
S
16
How many electrons are there in the outermost energy level for B?
3
4
2
1
17
Which group is known as noble gases?
Group 18
Group 17
Group 1
Group 2
18
As what can you classify the element silicon?
nonmetal
metalloid
metal
19
Where are the semimetals located on the periodic table?
along the zigzag line
to the left of the zigzag line
to the right of the zigzag line
20
As what can you classify the element aluminum?
metalloid
metal
nonmetal
21
How are the noble gases different from the other elements?
# electrons > # protons
# electrons < # protons
# electrons = # protons
their outer energy level is full
22
Which group is known as alkaline earth metals?
Group 2
Group 1
Group 18
Group 17
23
Which element would be classified as a metalloid?
In
Ne
Ge
Mg
24
How many energy levels are there for the element B?
4
1
3
2
25
How many valence electrons does calcium have?
2
4
7
1
26
How many periods are on the periodic table?
7
VII
18
VIII
27
Which element would be classified as an alkali metal?
Po
K
S
Sr
28
As what can you classify the element argon?
metalloid
nonmetal
metal
29
Where are the nonmetals located on the periodic table?
along the zigzag line
to the right of the zigzag line
to the left of the zigzag line
30
Which of the following is NOT a property of most metals?
ductile
liquid at room temperature
good conductor of heat and electricity
malleable
31
As what can you classify the element hydrogen?
nonmetal
metal
metalloid
32
Which of these elements has the smallest atomic number?
Pb
U
B
Kr
33
As you move from left to right across a period, the metals tend to increase in reactivity.
false
true
34
How many groups are on the periodic table?
VII
18
7
XVIII
35
Which pair of elements is in the same group?
In and Sr
S and Pb
Sr and Kr
B and In
36
Which group of elements are ductile, malleable, and good conductors?
nonmetals
metalloids
metals
lanthanides
37
Why are the elements in the last group so stable?
they only need to gain one electron
they don't need to gain or lose any electrons
their outer energy level is half empty
they only need to lose one electron
38
Valence electrons are:
electrons found in outerspace
electrons found in the innermost energy level
electrons found in the outermost energy level
electrons found in the nucleus of an atom
39
Which element does not belong to any group?
He
Uuu
H
U
40
Which group is known as alkali metals?
Group 2
Group 17
Group 1
Group 18
41
Where are the metals located on the periodic table?
to the right of the zigzag line
along the zigzag line
to the left of the zigzag line
42
Which pair of elements is in the same period?
B and In
In and B
S and Pb
Sr and Kr
43
A ductile material is one that can be hammered into thin sheets.
true
false
44
Which group is known as halogens?
Group 1
Group 18
Group 17
Group 2
45
Which element would be classified as a metalloid?
S
Sr
Kr
Po
