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Periodic Table Review Flashcards | StudBud
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Periodic Table Review
Periodic Table Review
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1
As you move from LEFT to RIGHT across a period, what happens to the number of valence electrons?
Increase then decrease
Stay the same
Increases
Decreases
2
Identify the segments labeled A and B.
Both A and B are periods.
A is period, B is group.
A is group, B is period.
Both A and B are groups.
3
Which one of the following elements has the highest electronegativity?
F
Cl
Ne
Br
4
How many valence electrons does phosphorus have and what energy level are they located in?
5 in 2nd level
3 in 2nd level
5 in 3rd level
3 in 3rd level
5
Malleability and ductility are characteristics of what classification of element?
All elements
Metalloids
Nonmetals
Metals
6
What element does the Bohr model represent?
F
Br
Cl
I
7
What is the trend of electronegativity within a group?
Increases from top to bottom
Does not change within a group
Decreases from bottom to top
Increases bottom to top
8
Which one of the following elements has the lowest electronegativity?
F
Cl
I
Br
9
What is region B?
All metals
Metalloids
Nonmetals
Mostly metals
10
What group contains the maximum number of valence electrons, making it the least reactive and most chemically stable?
Alkali metals
Halogens
Transition metals
Noble gases
11
What neutral element does this Bohr Diagram represent?
Sr
Mg
Ca
K
12
Which 3 groups of the Periodic Table contain the most elements classified as metalloids?
2, 13, 14
14,15,16
1, 2, 13
16,17,18
13
Which of these elements is most reactive?
Na
Li
Fr
K
14
Which one of the following elements has the smallest atomic radius?
Fr
H
Li
He
15
Who first arranged the periodic table by increasing atomic mass?
Ernest Rutherford
Dmitri Mendeleev
Albert Einstein
Henry Moseley
16
According to Bohr’s theory, an electron’s path around the nucleus defines its:
Atomic Number
Energy level
Speed
Charge
17
How many valence electrons does magnesium have?
12
1
2
24
18
What is region 2?
Metalloids
Alkali metals
Halogens
Transition metals
19
How many electrons will this element gain or lose to fulfill the Octet rule and what will the charge be?
Gain -6
Lose, -2
Gain, +6
Lose, +2
20
The chemical and physical properties of Na are most similar to which other element?
Be
He
K
C
21
Which is an inner transition metal?
Fe
U
Ti
Au
22
How many valence electrons are in this Bohr model?
7
8
4
1
23
A(n) _________________ is an element that share properties of both metals and nonmetals.
Ions
Metalloids
Noble gases
Alkali metal
24
Atoms of the most reactive elements tend to have how many valence electrons?
0
8
4 or 5
1 or 7
25
Which classification includes the majority of the elements?
Metals
Metalloids
Liquids
Nonmetals
26
What is region 1?
Alkaline Earth Metals
Alkali Metals
Metalloids
Halogens
27
Two highly reactive elements in period 3 are the metal sodium and the nonmetal __________________.
F
As
Ar
Cl
28
Which Chalcogen (oxygen family member) is most likely to react?
Se
F
S
O
29
Which one of the following elements has the largest atomic radius?
Cs
Fr
U
Rn
30
Nonmetals tend to be:
Ductile
Poor conductors of electricity
Good conductors of heat
Malleable
31
which of the following elements would be most dangerous to drop in water since it would react the fastest?
K
H
Cs
Li
32
Put elements in order of increasing reactivity: Be, Ra, Ba, Mg, Ca, Sr
Be<Mg<Ca<Sr<Ba<Ra
Ra<Mg<Sr<Ca<Be<Ba
Ra<Ba<Sr<Ca<Mg<Be
Ba<Ca<Mg<Be<Ra<Sr
33
Which one of the following elements has the highest ionization energy?
Cs
Fr
K
Li
34
Which one of the following elements has the lowest ionization energy?
K
Na
Li
Cs
35
How many electron(s) are in the highest occupied energy level of Lithium?
4
2
1
3
36
What are the elements located in group 18 of the periodic table (also known as group 8A) called?
Alkaline earth metals
Halogens
Noble gases
Alkali metals
37
What is region 3?
Metalloids
Noble gases
Transition metals
Halogens
38
What is region C?
Nonmetals
Inner transition metals
Mostly metals
Metalloids
39
What element is located in period 2 and group 18?
Cs
Ne
Kr
He
40
Which list of elements contains only metals?
N, K, Ca
K, Ca, Na
K, Na, O
O, N, Cl
