In the Formation of a Compound of Sodium Chloride

question 79

Multiple Choice

In the formation of a compound of sodium chloride,

• A) a chlorine atom donates an electron to a sodium atom.
• B) a chloride ion donates two protons to a sodium ion.
• C) a sodium atom donates an electron to a chlorine atom.
• D) a sodium ion donates two electrons to a chlorine atom.
• E) the sodium and chlorine atoms share a pair of electrons equally.

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Definitions:

Circadian Rhythms

Variations in behavior, physical condition, and mental state that occur on a 24-hour loop, primarily triggered by environmental light and dark conditions.

Circadian Rhythms

Natural, internal processes that regulate the sleep-wake cycle and repeat roughly every 24 hours.

Sleep/Wake Cycle

The circadian rhythm that regulates patterns of sleepiness and wakefulness over a 24-hour period.

Sleep Spindles

Bursts of brain activity observable in an EEG that occur during Stage 2 of sleep, thought to play a role in memory consolidation and learning.