Which of the Following Statements Is TRUE

question 40

Multiple Choice

Which of the following statements is TRUE?

• A) Boron is a large component of Earth's crust.
• B) Boron is usually found in its elemental state in the Earth's crust.
• C) Due to boron's small size and low electronegativity, it behaves as a semimetal instead of a metal.
• D) Boron atoms don't typically bond to one another due to its small atomic radius.
• E) There are at least five allotropes of elemental boron.

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Definitions:

Sodium Ions

Positively charged particles of sodium, which play crucial roles in the body such as maintaining fluid balance, transmitting nerve impulses, and muscle contraction.

Substance P

A neuropeptide involved in the transmission of pain and other sensory information to the central nervous system.

Pheromones

Chemical substances produced and released into the environment by an animal, affecting the behavior or physiology of others of the same species.

Cytokines

Signaling proteins secreted by cells, playing a critical role in immune system responses and inflammation.