![Page 1: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/1.jpg)
HW Due: None
ChemCatalyst:
Using the data below, calculate the average atomic mass of silicon.
Get your clicker!
Today’s Objectives:
1.Identify the period, group, and block of an element2.Write an atom's electron configuration
3.Identify an atom based upon its electron configuration
Isotope Mass (amu) Abundance (%)28
14Si 27.98 92.2129
14Si 28.98 4.7030
14Si 29.97 3.09
![Page 2: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/2.jpg)
A. ProtonsB. Neutrons C. Electrons
Protons
Neutrons
Electrons
0% 0%0%
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Using the data below, calculate the average atomic mass of silicon.
(27.98)(0.9221) + (28.98)(0.047) + (29.97)(0.0309) = 28.09 amu
Isotope Mass (amu) Abundance (%)28
14Si 27.98 92.2129
14Si 28.98 4.7030
14Si 29.97 3.09
![Page 4: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/4.jpg)
A. Closer to the mass of the isotope with the heaviest mass
B. Closer to mass of the isotope with the greatest abundance
Closer to th
e mass
of the ...
Closer to m
ass of t
he iso...
0%0%
![Page 5: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/5.jpg)
Using the data below, calculate the average atomic mass of silicon.
(27.98)(0.9221) + (28.98)(0.047) + (29.97)(0.0309) = 28.09 amu
Isotope Mass (amu) Abundance (%)28
14Si 27.98 92.2129
14Si 28.98 4.7030
14Si 29.97 3.09
![Page 6: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/6.jpg)
![Page 7: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/7.jpg)
A. 7B. 9C. 18
7 9 18
0% 0%0%
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A. 7B. 9C. 18
7 9 18
0% 0%0%
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A. Fit into periods 6 & 7
B. Are groups 8 & 9
C. Fit into groups 6 & 7
Fit in
to periods 6
& 7
Are groups 8 &
9
Fit in
to groups 6
& 7
0% 0%0%
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A. 2B. 4C. 20
2 4 20
0% 0%0%
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A. 2B. 4C. 38
2 4 38
0% 0%0%
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![Page 13: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/13.jpg)
A. 1B. 2C. 3D. 4
1 2 3 4
0% 0%0%0%
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A. 1B. 3C. 6D. 9
1 3 6 9
0% 0%0%0%
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A. 5B. 10C. 12D. 24
5 10 12 24
0% 0%0%0%
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A. 5B. 10C. 14D. 24
5 10 14 24
0% 0%0%0%
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A. HB. HeC. Hg
H He Hg
0% 0%0%
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A. 3B. 4C. 8
3 4 8
0% 0%0%
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A. sB. pC. dD. f
s p d f
0% 0%0%0%
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A. sB. pC. dD. f
s p d f
0% 0%0%0%
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A. 6B. 7C. 8D. 9
6 7 8 9
0% 0%0%0%
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![Page 23: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/23.jpg)
A. Inside the nucleus
B. Outside the nucleus
Inside th
e nucleus
Outside th
e nucleus
0%0%Electrons are found orbiting the nucleus in a
particular path
![Page 24: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/24.jpg)
Definition: the arrangement of electrons in space around a nucleus
The periodic table reveals patterns in how the electrons are arranged
![Page 25: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/25.jpg)
![Page 26: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/26.jpg)
Always start at hydrogen
List the boxes you have to go through to get to the atom of interest
◦ If you go through multiple boxes that have the same number/letter use a superscript to indicate how many of that type of box were passed
You must include the position of the atom of interest
![Page 27: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/27.jpg)
Be
1s22s2
Al
1s22s22p63s23p1
Add up the superscripts! What do
you notice?
2 + 2 = 4 = atomic # of Be
2 + 2 + 6 + 2 + 1= 13 = atomic # of Al
![Page 28: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/28.jpg)
I
1s22s22p63s23p64s23d104p65s24d105p5
Pb
1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p2
How can you check your work?
![Page 29: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/29.jpg)
![Page 30: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/30.jpg)
Electron configurations can also be used to identify an atom
◦ Sum of subscripts = atomic #
◦ Example: 1s22s22p63s23p4
2 + 2 + 6 + 2 + 4 = 16 = atomic # 16 Element is S
![Page 31: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/31.jpg)
The last letter/number can be found on the periodic table
◦ Example: 1s22s22p63s23p64s23d104p65s24d105p66s24f145d9
Find 5d9
5d9 = Au
![Page 32: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/32.jpg)
![Page 33: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/33.jpg)
He Fears Clowns!!
He
Fe Ar S
Cl O W N S
![Page 34: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/34.jpg)
![Page 35: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/35.jpg)
![Page 36: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/36.jpg)
A. Group 15, period 4, p block
B. Group 15, period 4, s block
C. Group 4, period 15, p block
D. Group 4, period 15, d block
Group 15, p
eriod 4, p
block
Group 15, p
eriod 4, s
block
Group 4, p
eriod 15, p
block
Group 4, p
eriod 15, d
block
0% 0%0%0%
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A. 1s22s22p63s23p64s24p5
B. 1s22s22p63s23p64s24d104p5
C. 1s22s22p63s23p64s23d104p5
1s22s22p63s2
3p64s24p5
1s22s22p63s2
3p64s24d1...
1s22s22p63s2
3p64s23d1...
0% 0%0%
![Page 38: Good morning/afternoon. Today is October 24, 2014 HW Due: None ChemCatalyst: Using the data below, calculate the average atomic mass of silicon. Get your](https://reader036.vdocument.in/reader036/viewer/2022062503/5a4d1adc7f8b9ab059975040/html5/thumbnails/38.jpg)
A. LuB. HgC. LrD. Cd
Lu Hg Lr Cd
0% 0%0%0%
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Electron Configurations Review