Multiple Choice
How many electrons can an atom have in its first electron shell (n = 1)?
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10. Periodic Properties of the Elements
The Electron Configuration
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When an electron transitions from a higher energy level to a lower energy level in an atom, which of the following occurs?
A
Energy is absorbed by the electron from its surroundings.
B
Energy is released in the form of electromagnetic radiation.
C
The electron moves farther from the nucleus.
D
The atom becomes ionized.
Verified step by step guidance1
Understand that when an electron moves from a higher energy level to a lower energy level, it is transitioning to a state of lower potential energy.
Recall that energy conservation requires that the excess energy lost by the electron must be released in some form.
Recognize that this released energy typically appears as electromagnetic radiation, such as light, which corresponds to the energy difference between the two levels.
Note that energy absorption occurs when an electron moves from a lower to a higher energy level, which is the opposite process.
Understand that moving to a lower energy level means the electron moves closer to the nucleus, and ionization involves completely removing the electron, which is not the case here.
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