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Unit 5: Periodic Table Review Flashcards | StudBud
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Unit 5: Periodic Table Review
Unit 5: Periodic Table Review
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1
The ionization energy of magnesium is greater than that of sulfur.
TRUE
FALSE
2
Which of the following has the highest ionization energy?
Cs
Ar
Mg
P
3
Which sequence of symbols have similar properties?
O, S, Se, Te (green)
K, V, Zn, Kr (pink)
F, S, As, Sn (yellow)
Li, Mg, Sc, Zr (blue)
4
Which of the following elements would be least likely to react with carbon?
Lithium
Silicon
Xenon
Aluminum
5
Which is a property of Cobalt (Co)?
strong semiconductor
low density
hard and shiny
highly reactive with other elements
6
Consider the following about Mendeleev:
the table was too full
protons belonged there
the table was too small
unknown elements fit there
7
Which of the following elements is in the same period as carbon?
beryllium
aluminum
silicon
phosphorus
8
This graph represents the trend of ionization energy for F, Cl, Br, and I.
FALSE
TRUE
9
Properties: soft silvery-white color, good conductor, one valence electron
noble gases
alkali metals
alkaline earth metals
halogens
10
As you move from left to right across a period of the periodic table, ____.
the atomic number decreases
the electronegativity decreases
the atomic radius increases
the ionization energy increases
11
Which of the following has the highest electronegativity?
P
Cs
Ar
Mg
12
Which group does this element belong to?
4A
1A
3A
2A
13
The ionization energy of fluorine is greater than that of iodine.
True
False
14
Henry Moseley organized the periodic table by
periods by properties; inc atomic number
groups by properties; inc atomic mass
groups by properties; inc atomic number
periods by properties; inc atomic mass
15
The element below would be expected to react similarly to which of the following?
Phosphorus (P)
Bromine (Br)
Selenium (Se)
Carbon (C)
16
How does fluorine achieve a noble gas configuration?
Fluorine loses 7 electrons
Fluorine gains 7 electrons
Fluorine gains 1 electron
Fluorine loses 1 electron
17
Describe noble gases:
gas; reacts with acids
gas; mostly unreactive with metals
solid; reacts with acids
solid; mostly unreactive with metals
18
Elements in the alkali metal family tend to form ions with an oxidation number or charge of ___
+2
-1
+1
-2
19
Which of these elements has the same Lewis dot structure as nitrogen?
gallium (Ga)
germanium (Ge)
arsenic (As)
aluminum (Al)
20
What is the number of electrons in the outermost energy level of an oxygen atom?
4
6
8
2
21
Which element is most similar to fluorine (F)?
sulfur (S)
iodine (I)
lithium (Li)
calcium (Ca)
22
When atoms with 5, 6, or 7 valence electrons gain electrons, they become
cations
radioactive
unstable
anions
23
Which one of the following has the largest radius?
Rb
Cs
Sr
Ba
24
Which is TRUE of noble gases?
zero EN values; do not need to attract electrons
zero EN values; strongly attract electrons
highest EN values; strongly attract electrons
highest EN values; do not need to attract electrons
25
What is the likely missing electronegativity in the table?
2.2
1.7
1.8
2.0
26
Which of the following is a member of the halogen family on period 3?
Chlorine (Cl)
bromine (Br)
argon (Ar)
sulfur (S)
27
An unknown element X forms -1 ions. What happened?
Lost 1 electron, no longer neutral
Gained 1 proton, no longer neutral
Lost 1 proton, no longer neutral
Gained 1 electron, no longer neutral
