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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 the Lewis structure in Model 3 for each molecule are: \n a) \(\mathrm{H}_{2} \mathrm{CO}\): 12 electrons \n b) \(\mathrm{N}_{2}\): 10 electrons \n c) \(\mathrm{Cl}_{2}\): 14 electrons.

Step by step solution

01

Calculate Total Valence Electrons for H2CO

To determine the number of total valence electrons, identify and add up the valence electrons of each atom in \(\mathrm{H}_{2} \mathrm{CO}\). Hydrogen has 1 valence electron and there are two Hydrogen atoms, giving a total of 2. Carbon has 4 valence electrons, and Oxygen has 6. Add all these up and the total valence electrons for \(\mathrm{H}_{2} \mathrm{CO}\) is 12.
02

Calculate Total Valence Electrons for N2

For \(\mathrm{N}_{2}\), Nitrogen has 5 valence electrons and there are two Nitrogen atoms, resulting in a total of 10 valence electrons.
03

Calculate Total Valence Electrons for Cl2

For \(\mathrm{Cl}_{2}\), Chlorine has 7 valence electrons and there are two Chlorine atoms, giving a total of 14 valence electrons.

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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.

Without attempting to draw a Lewis structure, calculate the total number of valence electrons in each of these molecules: a) \(\mathrm{H}_{2} \mathrm{CO}\) b) \(\mathrm{N}_{2}\) c) \(\mathrm{Cl}_{2}\)

For each of the following neutral atoms give the core charge. a) Li. b) \(\quad \ddot{\mathrm{Cl}}\) c) He:

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

Revise (as necessary) your checklist that can be used to determine if a Lewis structure for a molecule is correct.
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