Practice Atomic Radius (2.1) - Unit 3: Periodicity

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6 sample questions

Question 1.
What happens to atomic radius as you move down a group in the periodic table?
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Think about adding energy levels.
Question 2.
What is the definition of effective nuclear charge?
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Consider how inner electrons affect the attraction.
3Question 3.
What is the primary factor that causes atomic radius to increase down a group?
- A) Increased nuclear charge
- B) Increased principal energy levels
- C) Decreased electron shielding
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Consider what happens to the electron layers.
4Question 4.
True or False: The atomic radius decreases as you move from left to right across a period.
- True
- False
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Visualize how protons draw electrons closer.
Question 5.
Discuss the influence of effective nuclear charge on the stability of a cation's atomic radius versus that of a neutral atom.
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Consider how losing electrons affects effective nuclear charge.
Question 6.
For the elements in Period 4, arrange them according to their atomic radii and justify your order.
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Remember the periodic trends when organizing the elements.

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