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Chapter 2: Q28 E (page 128)

Explain why the symbol for element sulfur and the formula for a molecule of sulfur differ.

Short Answer

Expert verified

The symbol for an element sulfur and the formula for a molecule of sulfur differ because sulfur molecules have 8 sulfur atoms. Therefore, it has different symbols. Although many elements consist of discrete, individual atoms, some exist as molecules made up of two or more atoms of the elements chemically bonded together.

Step by step solution

01

- Determine the definition of molecular formula

A molecular formula is a representation of a molecule that uses chemical symbols to indicate the type of atoms. It is also used as abbreviations for the names of compounds.

02

- Describe how symbol for S atom and S molecules are different.

The sulfur molecule formula is S8. The subscript 8 denotes the number of atoms bounded to form a molecule.

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Most popular questions from this chapter

In the following drawing, the green spheres represent atoms of a certain element. The purple spheres represent atoms of another element. If the spheres of different elements touch, they are part of a single unit of a compound. The following chemical change represented by these spheres may violate one of the ideas of Dalton鈥檚 atomic theory. Which one?

Identify the postulate of Dalton鈥檚 theory that is violated by the following observations: 59.95% of one sample of titanium dioxide is titanium; 60.10% of a different sample of titanium dioxide is titanium.

Write a symbol for each of the following neutral isotopes. Include the atomic number and mass number for each.

(a) the alkali metal with 11 protons and a mass number of 23

(b) the noble gas element with 75 neutrons in its nucleus and 54 electrons in the neutral atom

(c) the isotope with 33 protons and 40 neutrons in its nucleus

(d) the alkaline earth metal with 88 electrons and 138 neutrons

Using the periodic table, classify each of the following elements as a metal or a nonmetal, and then further classify each as a main-group (representative) element, transition metal, or inner transition metal:

(a) cobalt

(b) europium

(c) iodine

(d) indium

(e) lithium

(f) oxygen

(h) cadmium

(i) terbium

(j) rhenium

Write the molecular and empirical formulas of the following compounds:

a)

(b)

(c)

(d)
See all solutions

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