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Periodic Table Unit Review Flashcards | StudBud
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Periodic Table Unit Review
Periodic Table Unit Review
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elements, groups, and trends
Flashcards
25 cards
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Questions
25
Answers
1
Which statement describes the trend for atomic radius from left to right within a period?
atomic radius decreases
atomic radius increases
2
Which Group 16 element exists as a diatomic molecule?
selenium (Se)
polonium (Po)
sulfur (S)
oxygen (O)
3
Which statement describes the trend for ionization energy from left to right within a period?
ionization energy decreases
ionization energy increases
4
Which group is known as the alkali earth metals?
2
18
1
17
5
Which element is a noble gas?
chlorine (Cl)
iodine (I)
oxygen (O)
helium (He)
6
Which group is known as the halogens?
18
17
1
2
7
The elements in Group 1 are classified as
metals
nonmetals
noble gases
metalloids
8
Which group is known as the alkali metals?
1
17
2
18
9
Which element in Period 4 exists as a diatomic molecule?
Kr
V
Br
Zn
10
Which statement describes the trend for ionization energy from top to bottom within a group?
ionization energy increases
ionization energy decreases
11
Which element conducts electricity and exists as a liquid at STP?
bromine (Br)
zinc (Zn)
hydrogen (H)
mercury (Hg)
12
Which statement describes the trend for atomic radius from top to bottom within a group?
atomic radius decreases
atomic radius increases
13
Which statement describes the trend for metallic character from top to bottom within a group?
metallic character decreases
metallic character increases
14
The elements of the periodic table are arranged in order of increasing
atomic mass
atomic number
neutrons
valence electrons
15
Which element is a nonmetal that exists as a liquid at STP?
bromine (Br)
zinc (Zn)
hydrogen (H)
mercury (Hg)
16
All of the atoms of the elements in Period 3 have the same number of
valence electrons
protons
occupied energy levels (shells)
neutrons
17
Which property is a characteristic of metals
malleable
has luster
all of these answers are characteristics of metals
conducts electricity
18
Which statement describes the trend for electronegativity from left to right within a period?
electronegativity increases
electronegativity decreases
19
Which pair consists of two metalloids?
Sb and Se
Si and Ge
I and Te
P and As
20
Which characteristics would describe an element as a nonmetal?
high ionization energy and low electronegativity
low ionization energy and low electronegativity
low ionization energy and high electronegativity
high ionization energy and high electronegativity
21
Which property is a characteristic of nonmetals?
conducts electricity
has luster
malleable
brittle
22
Which element is a gas at STP?
mercury (Hg)
carbon (C)
flourine (F)
iodine (I)
23
Which statement describes the trend for metallic character from left to right within a period?
metallic character increases
metallic character decreases
24
Which group is known as the noble gases?
18
17
2
1
25
Which statement describes the trend for electronegativity from top to bottom within a group?
electronegativity decreases
electronegativity increases
