Multiple Choice
Where are the electron particles located in an atom?
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10. Periodic Properties of the Elements
The Electron Configuration
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many electrons can occupy the second energy level (n = 2) of an atom?
A
18
B
6
C
2
D
8
Verified step by step guidance1
Understand that the number of electrons that can occupy a given energy level (principal quantum number \( n \)) is determined by the formula \( 2n^2 \).
Identify the principal quantum number for the second energy level, which is \( n = 2 \).
Substitute \( n = 2 \) into the formula: \( 2 \times (2)^2 \).
Calculate the value inside the parentheses first: \( (2)^2 = 4 \).
Multiply by 2 to find the maximum number of electrons: \( 2 \times 4 = 8 \). Thus, the second energy level can hold up to 8 electrons.
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