Practice Electron Configuration (2.5) - Structure of Atom

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
How many electrons can the K shell hold?
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Use the 2n² rule where n = 1.
Question 2.
What is the electron configuration for Helium (Z = 2)?
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Think about how many electrons are in the K shell.
3Question 3.
What is the maximum number of electrons in the L shell?
- 2
- 8
- 18
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Recall the formula for the maximum electron capacity.
4Question 4.
True or False: The M shell can hold a maximum of 8 electrons.
- True
- False
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Think about the formula 2n² for the M shell.
Question 5.
Determine the electron configuration for Selenium (Z = 34) and explain your reasoning.
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Break down the electrons into cells using the 2n² rule.
Question 6.
If an element has 20 electrons, what would be its electron configuration? Explain your answer.
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Remember the maximum number of electrons per shell.

5 more questions in this section. Enroll free to practise them all.