Scelta multipla
Which of the following is the correct electron configuration for gallium (Ga)?
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10. Periodic Properties of the Elements
The Electron Configuration
Scelta multipla
How many electrons can be accommodated in the third energy level (n = 3) of an atom?
A
6
B
8
C
18
D
32
Guida verificata passo dopo passo1
Recall that the maximum number of electrons in any energy level (shell) is given by the formula \$2n^2$, where $n$ is the principal quantum number (energy level).
Identify the principal quantum number for the third energy level: \(n = 3\).
Substitute \(n = 3\) into the formula: \(2 \times (3)^2\).
Calculate the value inside the parentheses first: \((3)^2 = 9\).
Multiply by 2 to find the maximum number of electrons: \(2 \times 9 = 18\) electrons can be accommodated in the third energy level.
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