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Unit 2: Electron and the Periodic Table Flashcards | StudBud
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Unit 2: Electron and the Periodic Table
Unit 2: Electron and the Periodic Table
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Answers
1
What
large
group of elements contains many metals which are not highly reactive such as copper, iron, and tungsten?
Noble Gases
Alkali Metals
Halogens
Transition Metals
2
The period number tells me my number of energy levels.
True
False
3
Periodic Trends:
Which of the following elements has the largest electronegativity?
Cl
Al
Br
4
What group is in the middle of the periodic table and contains a variety of metals?
Metalloids
A group with metals in it
Alkali Metals
Transition Metals
5
Which
best
describes the trends in electronegativity on the periodic table?
Electronegativity decreases up and to the left.
Electronegativity increases down and to the left.
Electronegativity decreases down and to the right.
Electronegativity increases up and to the right.
6
Periodic Trends:
Ionization energy tends to
increase as you go down a group
increase as you go across a period
decrease as you go across a period
decrease as you go down a group
7
Where on the periodic table are most of the gases found?
In the upper right
On the Very bottom
On the far left
In the middle
8
What element has this electron configuration? (Hint- add the top numbers to get atomic number)
Argon (18)
Oxygen (8)
Sulfur (16)
Chlorine (17)
9
What determines the Valence Electron?
Atomic Mass
Period
Atomic Number
Group
10
Periodic Trends:
The atomic radius of elements
decrease as you go across a period
decrease as you go down a group
increase as you go down a group
increase as you go across a period
11
What is the second group called
iron earth metal
Halogens
Noble gases
alkaline earth metals
12
What group of elements includes elements like sodium and potassium ?
Alkali Metals
Transition Metals
Alkaline Earth Metals
Noble Gases
13
Most of the elements on the periodic table are non-metals
True
False
14
What group is oxygen in?
6
7
1
2
15
How many valence electrons does magnesium have?
3
2
6
8
16
What group does Oxygen (O) Belong to?
1
7
6
8
17
What group of elements is a happy group of elements which do not easily react with any other elements ?
Noble Gases
Alkali Metals
Halogens
Transitional Metals
18
Periodic Trends:
Which of the following elements has the larger radius?
Na+1
Na
19
Alkaline earth metals
in group 1
in group 2
in group 8
in group 7
20
Which is the correct electron for boron?
1s22s22p63s2
1s22s22p1
1s22s22p6
1s22s22p5
21
what is the charge of the alkaline earth metals?
2+
1-
+2
3-
22
According to periodic trends, is Fluorine or Chlorine more electronegative?
Chlorine
Fluorine
23
Which of the following is not a trend on the periodic table?
Atomic Radius
Electronegativity
Ionization energy
Element Color
24
How many valence electrons does nitrogen have?
6
8
5
7
25
Which of the following element is a non-metal?
titanium
silicon
oxygen
xenon
26
Most of the gases found on the periodic table are
Transition Metals
Halogens
Noble Gases
Non-Metals
27
What is the electron configuration for oxygen
1s22s22p1
1s22s22p2
1s22s22p4
1s22s22p3
28
Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb) are all Alkali Metals
False
True
29
Most elements on the periodic table are in which state?
Gas
Obleque
Liquid
Solid
30
Periodic Trends:
Electronegativity tends to
decrease as you go down a group
increase as you go across a period
increase as you go down a group
decrease as you go across a period
31
What element is in Group 7?
Carbon (C)
Helium (He)
Oxygen (O)
Iodine (I)
