# Question

If the de Broglie wavelength associated with an electron is 7.50 x 10-7, what is the electron’s speed?

## Answer to relevant Questions

(a) Which has more possible sets of quantum numbers associated with it, n = 2 or ℓ = 2? (b) Prove your answer to part (a). Write the ground state electron configurations for each of the following atoms: (a) Boron (b), (b) Calcium (Ca), (c) Zinc (Zn), and (d) tin (Sn). What is the minimum uncertainty in the speed of an electron that is known to be somewhere between 0.050 nm and 0.10 nm from a proton? An electron is accelerated from rest through a potential difference of 100 V. What is the de Broglie wave-length of the electron? Electrons are accelerated from rest through an electric potential difference. (a) If this potential difference increases to four times the original value, the new de Broglie wavelength will be (1) four times, (2) twice, (3) ...Post your question

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