Practice Periodic Properties And Variations Of Properties – Physical And Chemical (1)

Practice: Periodic Properties and Variations of Properties – Physical and Chemical

Lesson 1Periodic Properties and Variations of Properties – Physical and Chemical

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10 questions

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6 sample questions

Question 1.
What is the Periodic Law?
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Think about how elements are related through their atomic numbers.
Question 2.
What direction do atomic radii increase?
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Consider the relationship with electron shells.
3Question 3.
What does the Periodic Law state?
- Properties are random
- Properties vary by atomic mass
- Properties vary by atomic number
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Focus on how elements correspond to their atomic number.
4Question 4.
Does atomic radius increase or decrease across a period?
- True
- False
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Think about how electrons are held closer to the nucleus.
Question 5.
Using the Periodic Table, analyze the electron affinity of Chlorine and compare it to that of Iodine. What difference would you expect and why?
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Consider how size relates to attraction of incoming electrons.
Question 6.
Predict the trends of metallic character in the alkali metals comparing Lithium, Sodium, and Potassium. Explain how this relates to their ionization energies.
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Think about the balance between atomic size and nuclear charge as you progress down the group.

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