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Chemistry | 11th Edition | ISBN: 9780073402680 | Authors: Raymond Chang
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Solved: Referring to Table 8.2, explain why the first

Chapter 8, Problem 142P

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QUESTION:

Referring to Table 8.2, explain why the first ionization energy of helium is less than twice the ionization energy of hydrogen, but the second ionization energy of helium is greater than twice the ionization energy of hydrogen. [Hint: According to Coulomb's law, the energy between two charges \(Q_1\) and \(Q_2\) separated by distance r is proportional to \((Q_1Q_2/r)\).]

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QUESTION:

Referring to Table 8.2, explain why the first ionization energy of helium is less than twice the ionization energy of hydrogen, but the second ionization energy of helium is greater than twice the ionization energy of hydrogen. [Hint: According to Coulomb's law, the energy between two charges \(Q_1\) and \(Q_2\) separated by distance r is proportional to \((Q_1Q_2/r)\).]

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Here, we explain why the first ionization energy of helium is less than twice the ionization energy of hydrogen, but the second ionization energy of helium is greater than twice the ionization energy of hydrogen.

 

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