Aline Says That the Magnetic Moment of an Atom Originates

question 42

Multiple Choice

Aline says that the magnetic moment of an atom originates in the orbital angular momentum of the electron. Bevis says that it comes from the electron spin. Which one, if either, is correct, and why?

• A) Aline, because only atoms, not electrons, can have angular momentum.
• B) Bevis, because only atoms, not electrons, can have angular momentum.
• C) Neither, because electron spin and orbital angular momentum always cancel exactly.
• D) Neither, because the magnetic moment of an atom comes only from the spin of the nucleus.
• E) Both, because both the orbital angular momentum and the spins of the electrons contribute to the magnetic moment of an atom.

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Definitions:

Mitosis

A process of cell division that results in two genetically identical daughter cells from a single parent cell, crucial for growth and repair in organisms.

Biochemical Traits

Characteristics at the molecular level, involving chemical processes and substances which occur within living organisms.

Autotrophs

Organisms capable of producing their own organic compounds from simple substances like carbon dioxide, often through photosynthesis, without relying on other organisms for food.

Green Algae

A diverse group of photosynthetic organisms found in various aquatic environments.