8
QuizMultiple Choice

The Modern Atomic Theory

Question 8 • SVHS Chemistry 1 $FA

How does the electron-cloud model describe electrons?

Answer
A
The exact position of an electron can be known.
B
An electron can be found at certain distances from the nucleus.
C
An electron has a high probability of being in certain regions.
D
Each electron follows a specific path around the nucleus.

Explanation

The electron-cloud model describes where an electron is likely to be found, rather than giving its exact position or a fixed route around the nucleus. The cloud represents regions where the electron has a high probability of being present, so choice A is correct. Choice D describes the older planetary model, in which electrons follow specific paths.

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