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Periodic Table Trends Flashcards | StudBud
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Periodic Table Trends
Periodic Table Trends
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#science #chemistry #elements #periodictable #periodic #highschool
Flashcards
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Questions
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Answers
1
Which of the following periods contains the greatest number of metallic elements?
2
4
3
1
2
Who arranged the periodic table first by atomic mass and by their chemical properties?
Rutherford
Mosely
JJ Thomson
Mendeleev
3
Which atom has the smallest atomic radius?
Ca
K
Mg
Na
4
Which element has the larger atomic radius?
Li
Rb
Fr
K
5
An element whose atoms have the electron configuration s
2
d
1
is:
a noble gas
an alkaline earth metal
an alkali metal
a transition element
6
All of the elements in Group 16 have the same number of
neutrons
valence electrons
protons
energy levels
7
Which of the following atoms has the highest ionization energy?
F
Br
Cl
I
8
Which of the following is the most reactive non-metal in the Periodic Table?
S
Na
N
F
9
Arrange the following sets of elements in order of increasing atomic radius: Rn, He, Xe, Kr.
Rn < Xe < Kr < He
He < Rn < Kr < Xe
He < Kr < Xe < Rn
Xe < Kr < Rn < He
10
Which are two properties of most nonmetals?
low ionization energy and poor electrical conductivity
high ionization energy and good electrical conductivity
high ionization energy and poor electrical conductivity
low ionization energy and good electrical conductivity
11
Which atom has the largest ionization energy?
F
I
Cl
Br
12
Which of the following elements has the smallest atomic size?
P
Si
Mg
Al
13
Starting from the top to the bottom of Group 15, which sequence in properties occurs?
metal -> metalloid -> nonmetal
nonmetal -> metalloid -> metal
metalloid -> metal -> nonmetal
metal -> nonmetal -> metalloid
14
Which ion has the smallest ionic radius compared to its original neutral atom?
F-1
Al+3
Mg+2
Na+1
15
The pair of elements with the most similar chemical properties are:
Mg and Ca
Ca and Br
Mg and S
S and Ar
16
Which sequence of properties occurs as the atomic numbers increase across Period 3?
nonmetal -> metal -> noble gas -> metalloid
nonmetal -> metalloid -> metal -> noble gas
metal -> nonmetal -> noble gas -> metalloid
metal -> metalloid -> nonmetal -> noble gas
17
Which ion is smaller than its corresponding neutral atom?
N-3
O-2
Al+3
Br-1
18
How many valence electrons does each element in Group 17 have?
8
5
2
7
19
Which element in Period 3 has the least tendency to lose an electron?
Na
Ar
P
Al
20
More than two-thirds of the elements in the Periodic Table are
nonmetals
metalloids
noble gases
metals
21
In Period 2, as the elements are considered from left to right, there is a decrease in
atomic radius
atomic mass
ionization energy
atomic number
22
Arrange the following sets of elements in order of increasing atomic radius: Sn, Xe, Rb, Sr.
Xe < Sn < Sr < Rb
Xe < Sn < Rb < Sr
Sn < Rb < Sr < Xe
Rb < Xe < Sr < Sn
23
Which is the most reactive metal?
Fr
Ca
F
Al
24
The lanthanide and actinide series of elements are found, respectively, in Periods
4 and 5
6 and 7
2 and 3
3 and 4
25
Which of the following particles has the smallest atomic radius?
Cs
K
Li
Na
