Textbook Question
A 0.22-caliber handgun fires a 1.9-g bullet at a velocity of 765 m/s. Calculate the de Broglie wavelength of the bullet. Is the wave nature of matter significant for bullets?
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Ch.7 - Quantum-Mechanical Model of the Atom
Chapter 7, Problem 57
Which electron is, on average, closer to the nucleus: an electron in a 2s orbital or an electron in a 3s orbital?
Verified step by step guidance1
<Understand the concept of atomic orbitals and their energy levels. The principal quantum number, n, indicates the energy level and size of the orbital.>
<Recognize that the 2s orbital has a principal quantum number of n=2, while the 3s orbital has n=3.>
<Recall that orbitals with lower principal quantum numbers are generally closer to the nucleus.>
<Consider the radial distribution of s orbitals, which shows that electrons in lower energy levels (like 2s) are more likely to be found closer to the nucleus than those in higher energy levels (like 3s).>
<Conclude that, on average, an electron in a 2s orbital is closer to the nucleus than an electron in a 3s orbital due to the lower principal quantum number.>
Related Practice
Textbook Question
An electron has an uncertainty in its position of 552 pm. What is the uncertainty in its velocity?
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Textbook Question
An electron traveling at 3.7×105 m/s has an uncertainty in its velocity of 1.88×105 m/s. What is the uncertainty in its position?
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Textbook Question
Which electron is, on average, farther from the nucleus: an electron in a 3p orbital or an electron in a 4p orbital?
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Textbook Question
What are the possible values of l for each given value of n? a. 1 b. 2 c. 3 d. 4
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Textbook Question
What are the possible values of ml for each value of l? a. 0
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