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Chapter 2: Problem 23

Consult a handbook of chemical and physical data (ask your instructor where you can locate a copy of the handbook) to find (a) two metals less dense than water, (b) two metals more dense than mercury, (c) the densest known solid metallic element, (d) the densest known solid nonmetallic element.

Short Answer

Expert verified
The short answer may vary depending on the handbook used. For example, it could be: (a) Lithium and Potassium are less dense than water. (b) Gold and Platinum are more dense than mercury (c) Osmium is the densest known solid metallic element. (d) Diamond (an allotrope of carbon) is the densest known solid nonmetallic element.

Step by step solution

01

Find Metals Less Dense Than Water

Look up in the chemical and physical data handbook the densities of different metals and find two that are less dense than water. The density of water is approximately 1 g/cm³. Note the names of these metals down.
02

Find Metals More Dense Than Mercury

Next, find two metals more dense than mercury. The density of mercury is approximately 13.6 g/cm³. Look up in your handbook and find two metals with a greater density than this.
03

Find the Densest Known Solid Metallic Element

Look up in your handbook for what the densest known solid metallic element is and write it down.
04

Find the Densest Known Solid Nonmetallic Element

Lastly, use the handbook to find out what the densest known solid nonmetallic element is and note it down as well.

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Most popular questions from this chapter

Identify the following as elements or compounds: \(\mathrm{NH}_{3}, \mathrm{~N}_{2}, \mathrm{~S}_{8}, \mathrm{NO}, \mathrm{CO}, \mathrm{CO}_{2}, \mathrm{H}_{2}, \mathrm{SO}_{2}\)

Fluorine reacts with hydrogen \((\mathrm{H})\) and with deuterium (D) to form hydrogen fluoride (HF) and deuterium fluoride (DF) [deuterium \(\left({ }_{1}^{2} \mathrm{H}\right.\) ) is an isotope of hydrogen]. Would a given amount of fluorine react with different masses of the two hydrogen isotopes? Does this violate the law of definite proportions? Explain.

A monatomic ion has a charge of +2 . The nucleus of the parent atom has a mass number of \(55 .\) If the number of neutrons in the nucleus is 1.2 times that of the number of protons, what is the name and symbol of the element?

For each of these species, determine the number of protons and the number of neutrons in the nucleus: \({ }_{2}^{3} \mathrm{He},{ }_{2}^{4} \mathrm{He},{ }_{12}^{24} \mathrm{Mg},{ }_{12}^{25} \mathrm{Mg},{ }_{22}^{48} \mathrm{Ti},{ }_{35}^{79} \mathrm{Br},{ }_{78}^{195} \mathrm{Pt}\)

Give an example of a case in which two molecules have different molecular formulas but the same empirical formula.
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