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Multiple Choice
Which of the following is closest to the density of gold at room temperature?
A
19.3 g/cm^3
B
2.70 g/cm^3
C
10.5 g/cm^3
D
8.96 g/cm^3
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Verified step by step guidance
1
Recall that density is defined as mass divided by volume, expressed as \(\rho = \frac{m}{V}\), where \(\rho\) is density, \(m\) is mass, and \(V\) is volume.
Understand that the density of a pure element like gold can be found in reference tables or periodic table data, typically given in units of grams per cubic centimeter (g/cm\(^3\)).
Recognize that gold is a heavy metal with a high atomic mass and closely packed atoms, which results in a relatively high density compared to many other metals.
Compare the given options to the known approximate density of gold, which is around 19.3 g/cm\(^3\), and see which value is closest to this known standard.
Conclude that among the options 2.70 g/cm\(^3\), 10.5 g/cm\(^3\), and 8.96 g/cm\(^3\), the value closest to gold's density is 19.3 g/cm\(^3\), confirming the correct answer.