Electronic Principles
What are the main parts of an atom?

Electrons, protons, and ions
Protons only
Electrons, protons, and neutrons
None of these
Electrons, ions, and neutrons

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Electronic Principles
Waveforms are graphs that show:

the passage of time on the vertical axis and amplitude on the horizontal axis
None of these
amplitude on the vertical axis and frequency on the horizontal axis
amplitude on the vertical axis and the passage of time on the horizontal axis
frequency on the vertical axis and amplitude on the horizontal axis

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