• Students,
Please read or review pages 161‐169.
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6.1 Section Quiz
Which type of element is Au?
A. metal
B. nonmetal
C. metalloid
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6.1 Section Quiz
Which type of element S?
A. metal
B. nonmetal
C. metalloid
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6.1 Section Quiz
Which type of element is silicon?
A. metal
B. nonmetal
C. metalloid
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6.1 Section Quiz
Which type of element is barium?
A. metal
B. nonmetal
C. metalloid
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6.1 Section Quiz
Which two elements have properties similar to Na?
A. lithium & potassium
B. gold & silver
C. magnesium & aluminum
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6. Describe the information in a periodic table.
7. Classify elements based on their electron configuration. 8. Distinguish between noble gases, representative elements and transition metals.
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• Info on the periodic table
• Electron configurations in groups
1. Noble gases
2. Representative elements
• Transition elements
1. Transition metals
2. Inner transition metals
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• Info on the periodic table :
–
–
–
–
–
chemical symbol
atomic number
info about electrons
atomic mass
state at room temperature
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6.2
Classifying the Elements
>
Squares in the Periodic Table
The periodic table displays the symbols
and names of the elements, along with
information about the structure of their
atoms.
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6.2
Classifying the Elements
>
Squares in the Periodic Table
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• Electron configuration in Groups: – Similar e‐ configurations give groups similar reactive properties
1. Noble gases
• Group 8A
• highest energy level is completely filled with e‐
• rarely take part in reactions
• also called “inert gases”
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6.2
Classifying the Elements
> Electron Configurations in Groups
The Noble Gases
The noble gases are the elements in Group 8A
of the periodic table. The electron configurations
for the first four noble gases in Group 8A are
listed below.
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2. Representative elements
• Groups 1A – 7A • Have a wide range of properties
• Group # = # of e‐ in outermost energy level
• 3 groups of RE have names
1. Alkali metals (1A)
» 1 e‐ in outermost level
» extremely reactive
» must be stored under oil
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–
3 groups of RE have names
2. Alkaline earth metals (2A)
» 2 e‐ in outermost level
» very reactive » will react with water
3. Halogens (7A)
» “salt‐forming”
» 7 e‐ in outermost level
» very reactive: not found as elements in nature
» abundant in compounds
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6.2
Classifying the Elements
> Electron Configurations in Groups
In atoms of the Group 1A elements below, there
is only one electron in the highest occupied
energy level.
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6.2
Classifying the Elements
> Electron Configurations in Groups
In atoms of the Group 4A elements below, there
are four electrons in the highest occupied energy
level.
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• Transition elements
1. Transition metals
• Group B elements
• “d block”= d sublevel filling with e‐
2. Inner transition metals • “f block”
• listed below the periodic table to conserve space
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6.2
Classifying the Elements
> Transition Elements
Blocks of Elements
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6.2 Section Quiz
Which of the following information about elements is usually NOT included in a periodic table?
A.
color
B.
symbol
C.
atomic number
D.
atomic mass
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6.2 Section Quiz
An alkali metal would have in the highest occupied energy level
A.
an s2 electron.
B.
an s1 electron.
C.
p2 electrons.
D.
p6 electrons.
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6.2 Section Quiz
Which one of the following is incorrectly labeled? A. Ne, noble gas
B. Cu, transition metal
C. Ga, transition metal
D. Cl, halogen
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6.2 Section Quiz
Transition metals are characterized as being different than representative elements because they have electrons filling which sublevels? A. p
B. d
C. s
D. f
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• Read pg. 170‐175
• WS 6.2
• Math Quiz due Mon
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