
AP Periodic Trends Lesson
Presentation
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Chemistry, Science
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10th - 12th Grade
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Practice Problem
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Medium
Andrew Baldwin
Used 6+ times
FREE Resource
10 Slides • 7 Questions
1
by Andrew Baldwin
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Explain the relationship between trends in atomic properties of elements and electronic structure and periodicity.
The organization iof the PTE is based on recurring properties of the elements and is explained by the electron configuration.
Trends of focus include: Ionization energy, Atomic and Ionic Radii
Electron Affinity, and Electronegativity.
Periodicity is valuable to predict/estimate values of properties in the absence of data .
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Multiple Choice
How many electrons are represented by this spectrum?
1
2
4
8
4
Multiple Choice
Which atomic arbital(s) are represented by this spectrum
1s
2s
3s
two of these
5
Fill in the Blanks
What is the symbol of the element that is represented by this spectrum?
Type answer...
6
Open Ended
Why is the peak for B shifted to the right more than Be? Explain using Coulomb's Law. (beware: read the scale at the bottom)
7
Poll
Rate your Confidence from Firday's Lesson
I am outside.
I am almost there.
I am in the neighborhood.
I am in the city.
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Multiple Choice
When Magnesium becomes an ion the radius decreases. Which of the statements below best explains this observation.
The number of electrons decreases so the attraction increases.
The number of protons decreases so the attraction decreases
The number of protons increases so the attraction increases.
The number of electrons increases so the attraction decreases.
14
Open Ended
Why does the radius increase when Chlorine becomes an Ion? Use principles of Atomic Structure and Coulomb's Law to Support your answer.
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by Andrew Baldwin
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