Electron Diffraction Shows

question 63

Multiple Choice

Electron diffraction shows

• A)that electrons behave like waves.
• B)the photoelectric effect.
• C)characteristic x-ray spectra.
• D)that electrons in atoms have only certain allowed energies.

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Definitions:

Milestones

Key points or events in the development of something or someone, often marking significant progress or stages of achievement.

Sitting Alone

The ability of an infant to maintain an upright sitting position without support, a developmental milestone usually achieved around 6 months of age.

Crawling

A form of locomotion used by infants that involves moving on the hands and knees or hands and feet before the ability to walk has been developed.

Sucking Reflex

An automatic response in which an infant sucks on anything placed in their mouth.