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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

Question: Write the formulas of the following compounds:

(a) barium chloride

(b) magnesium nitride

(c) sulfur dioxide

(d) nitrogen trichloride

(e) dinitrogen trioxide

(f) tin(IV) chloride

Give the group name for each of the following elements: (a) krypton (b) selenium (c) barium (d) lithium

For each of the following compounds, state whether it is ionic or covalent, and if it is ionic, write the symbols for the ions involved:

  1. \(KCl{O_4}\)
  2. \(Mg{\left( {{C_2}{H_3}{O_2}} \right)_2}\)
  3. \({H_2}S\)
  4. \(A{g_2}S\)
  5. \({N_2}C{l_4}\)
  6. \(Co{\left( {N{O_3}} \right)_2}\)

Using the periodic table, predict whether the following chlorides are ionic or covalent:\(SiC{l_4},PC{l_3},CaC{l_2},CsCl,CuC{l_2}{\rm{ and }}CrC{l_3}.\)

Use the periodic table to give the name and symbol for each of the following elements:

(a) the halogen in the same period as the alkali metal with 11 protons

(b) the alkaline earth metal in the same period with the neutral noble gas with 18 electrons

(c) the noble gas in the same row as an isotope with 30 neutrons and 25 protons

(d) the noble gas in the same period as gold
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