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Atomic Radius and Periodic Table Patterns

Authored by Mark Debold

Chemistry

10th Grade

NGSS covered

Atomic Radius and Periodic Table Patterns
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9 questions

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1.

OPEN ENDED QUESTION

5 mins • 1 pt

What is the definition of atomic radius presented in the passage? Is it a simple concept or are there complexities involved? Explain.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do chemists typically determine the atomic radius of an element? Describe the experimental procedure. What are the key steps?

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Tags

NGSS.HS-PS1-1

3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the general trend in atomic radius as you move down a group on the periodic table? Does the size of the atoms increase or decrease?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the general trend in atomic radius as you move across a period (from left to right) on the periodic table? Does the size of the atoms increase or decrease?

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Tags

NGSS.HS-PS1-1

5.

OPEN ENDED QUESTION

5 mins • 1 pt

How do both electron shielding and nuclear charge contribute to the trend in atomic radius across a period?

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Tags

NGSS.HS-PS1-1

6.

OPEN ENDED QUESTION

3 mins • 1 pt

As you move down a group, what is happening with the number of electron shells? How does this affect atomic radius?

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Tags

NGSS.HS-PS1-1

7.

OPEN ENDED QUESTION

10 mins • 1 pt

In your own words, summarize the main reasons for the observed trends in atomic radii, both down a group and across a period. Be sure to connect your explanations to the concepts of nuclear charge and electron shielding

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