Author Question: What should be the approximate diameter (in fm) of a nucleus containing 92 protons and 143 neutrons? ... (Read 142 times)

CQXA · **on:** Jul 29, 2018

What should be the approximate diameter (in fm) of a nucleus containing 92 protons and 143 neutrons?

What will be an ideal response?

Question 2

One fairly crude method of determining the size of a molecule is to treat the molecule as an infinite square well (a box) with an electron trapped inside, and to measure the wavelengths of emitted photons.

If the photon emitted during the n = 2 to n = 1 transition has wavelength 1940 nm, what is the width of the molecule? (c = 3.00 108 m/s, h = 6.626 10-34J s, mel = 9.11 10-31 kg)
A) 1.21 nm B) 1.12 nm C) 1.45 nm D) 1.33 nm