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CLEP Chemistry

Category - Multiple Choice

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Which of the following laws states that it is impossible to known the position and momentum of an electron simultaneously?

Pauli exclusion principle
Heisenberg's uncertainty principle
Hund's rule
Grahm's law
Ampere's law

Explanation

Answer: Heisenberg's uncertainty principle

Heisenberg’s uncertainty principle states that it is impossible to known the position and momentum of an electron simultaneously. The act of determining the position of an electron changes that particle's momentum.

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