The Atomic Radius of Zinc Is 137 Pm

question 9

Multiple Choice

The atomic radius of zinc is 137 pm.Estimate its density,given that the metal has a close-packed structure.

• A)7.47 g  cm ^{ 3}
• B)10.2 g  cm ^{ 3}
• C)14.0 g  cm ^{ 3}
• D)4.49 g  cm ^{ 3}
• E)19.2 g  cm ^{ 3}

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Definitions:

Zinc

A chemical element with the symbol Zn and atomic number 30, essential for human health, involved in enzyme function, protein synthesis, and immune system health.

Energy Homeostasis

The dynamic process by which the body regulates its internal environment to maintain energy balance, involving the intake, storage, and expenditure of calories.

Vertebrates

Animals with a backbone or spinal column, including fish, amphibians, reptiles, birds, and mammals.

Food Intake

The consumption of food substances by organisms to acquire the necessary nutrients for energy, growth, and maintenance.