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Chapter 13: Problem 8

What is the total number of electrons in the Lewis structure in Model 3 for each molecule: a) \(\mathrm{H}_{2} \mathrm{CO}\) b) \(\mathrm{N}_{2}\) c) \(\mathrm{Cl}_{2}\)

Short Answer

Expert verified
The total number of electrons in H2CO is 12, in N2 is 10, and in Cl2 is 14.

Step by step solution

01

Count the total number of valence electrons for H2CO

For the H2CO molecule: \n Two Hydrogen atoms each contribute 1 electron, the Carbon atom contributes 4 electrons, and the Oxygen atom contributes 6 electrons. So, the total number of electrons is 1*2 + 4 + 6 = 12.
02

Count the total number of valence electrons for N2

For the N2 molecule: \n Each Nitrogen atom contributes 5 electrons. Hence, the total number of electrons for this molecule is 5*2 = 10.
03

Count the total number of valence electrons for Cl2

For the Cl2 molecule: \n Each Chlorine atom contributes 7 electrons, so the total number of electrons for this molecule is 7*2 = 14.

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Most popular questions from this chapter

Answer the following for the nitrogen atom: a) What is the Lewis representation for \(\mathrm{N}\) ? b) How many additional electrons does one \(\mathrm{N}\) atom require when it forms a molecule? c) What is the likely formula for a molecule composed of hydrogen atoms and one nitrogen atom? Draw the Lewis structure for this molecule.

Give the Lewis representation for each of the following atoms. a) iodine b) calcium c) phosphorus

Make a checklist that can be used to determine if a Lewis structure for a molecule is correct.

For \(\mathrm{Cl}_{2}\), is the sum of the bonding electrons and the lone pair electrons (also known as nonbonding electrons) around each \(\mathrm{Cl}\) atom consistent with the Lewis model?

Use your checklist to determine whether or not the following is a correct structure for \(\mathrm{CO}_{2}\) $$ \ddot{\mathrm{O}}=\mathrm{C}=\ddot{\mathrm{O}} $$
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