Certain Period 2 Elements Exhibit Behaviors Similar to Period 3

question 20

Multiple Choice

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of the interesting diagonal relationships occurs between boron and silicon. Which of the following is one of their similarities?

• A)Both exhibit electrical properties of a conductor.
• B)The oxoanions of both elements occur in extended ionic networks.
• C)Both elements form compounds (boranes and silanes)that are good oxidizing agents.
• D)Boric acid and silicic acid occur in layers with widespread hydrogen bonding.
• E)Both elements are unusually soft solids.

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Definitions:

Retinal Disparity

A visual cue to depth perception that arises from the slightly different images of the world seen by each of the two eyes.

Parallel Lines

Lines in a plane that never meet, no matter how far they are extended.

Unified Object

A concept or entity perceived as a whole, where all components are considered together rather than individually.

Perceiving Distance

The cognitive process of determining the distance from oneself to an object or place, often involving visual and auditory cues.