In a Surprisingly Large Number of Their Properties, Beryllium Resembles

question 140

Multiple Choice

In a surprisingly large number of their properties, beryllium resembles aluminum and boron resembles silicon. Such a relationship is called

• A) amphoterism.
• B) an allotropic relationship.
• C) a diagonal relationship.
• D) the periodic law.
• E) an isoelectronic series.

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Definitions:

Brain Tissue

The collection of neurons, glial cells, and other components that make up the physical substance of the brain.

Lesion

Tissue destruction. A brain lesion is a naturally or experimentally caused destruction of brain tissue.

Neurotransmitter

Chemical substances in the nervous system that transmit signals from one neuron to another across synapses.

Agonist

A chemical or drug that binds to receptors in the brain and causes a reaction, often mimicking the action of naturally occurring substances.