Using the VSEPR Model, the Electron-Domain Geometry of the Central

question 14

Multiple Choice

Using the VSEPR model, the electron-domain geometry of the central atom in H₂O is ________.

• A) linear
• B) trigonal planar
• C) tetrahedral
• D) trigonal bipyramidal
• E) octahedral

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Definitions:

N1 Sleep

The first stage of the sleep cycle, characterized as the transition period from wakefulness to sleep, marked by light sleep and a reduction in muscle activity and awareness of the surroundings.

Circadian Rhythm

The internal biological clock that regulates the sleep-wake cycle and other physiological processes within approximately a 24-hour period.

Alpha Wave

A type of brain wave detected by electroencephalography (EEG) that indicates a state of physical and mental relaxation while being awake.

REM Rebound

The phenomenon where a person experiences increased amounts of REM sleep after being deprived of REM sleep in previous nights.