Question
Use the uncertainty principle to estimate the minimum kinetic energy of an electron confined within a nucleus of size $10 \mathrm{fm}$. Hint: Assume the electron is fully relativistic.
Step 1
The problem states that the nucleus has a size of \(10 \, \text{fm}\) (femtometers). We can convert this to meters for consistency in units: \[ 10 \, \text{fm} = 10 \times 10^{-15} \, \text{m} = 1 \times 10^{-14} \, \text{m}. \] Show more…
Show all steps
Your feedback will help us improve your experience
Nicholas Mogoi and 66 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Use the uncertainty principle to estimate the minimum kinetic energy possible for a) an electron confined to a region of atomic dimensions of about 0.1 nm. b) a proton confined to a region of nuclear dimensions of about 1 fm.
Use the Heisenberg uncertainty relation to find the approximate kinetic energy of an electron that is trapped in a region the size of an atomic nucleus ( $1 \mathrm{fm}=1 \times 10^{-15} \mathrm{m}$ ). Is this electron moving relativistically?
Quantum Theory
The Meaning of the Wave Function
Using Heisenberg’s uncertainty principle, (a) estimate the momentum uncertainty of a bound electron within an atom of diameter 10 fm. (b) Use this calculated momentum uncertainty to find the minimum binding energy.
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD