Platinum Has a Face-Centered Cubic Crystal Structure and a Density

question 140

Multiple Choice

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm³. What is the radius of the platinum atom

• A) 69 pm
• B) 98 pm
• C) 139 pm
• D) 196 pm
• E) 277 pm

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Definitions:

Major Points

Principal or most important ideas or elements in a discussion, presentation, or piece of writing.

Nasopharynx

The upper part of the pharynx that connects the nasal cavity above the soft palate, playing a role in respiration and vocalization.

Laryngopharynx

The lower section of the pharynx that connects to the larynx and esophagus, playing a role in both respiration and digestion.

Oropharynx

The part of the throat located behind the mouth, acting as a pathway for food and air.