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