Gold Has a Face-Centered Cubic Structure with a Unit Cell

question 34

Multiple Choice

Gold has a face-centered cubic structure with a unit cell edge length of 407.8 pm. What is the contribution to the density from each individual gold atom?

• A)21.44 g/cm³
• B)26.20 g/cm³
• C)13.1 g/cm³
• D)6.55 g/cm³
• E)19.28 g/cm³

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Definitions:

Genes

Units of heredity made up of DNA that are responsible for the inherited characteristics in living organisms, dictating the development and functioning of organisms.

Selective Breeding

The process by which humans use animal and plant breeding techniques to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce.

Eugenics

A set of beliefs and practices aimed at improving the genetic quality of the human population, historically associated with morally controversial methods and ideologies.

Cloning

A process of creating a genetically identical copy of an original organism or gene.