(ii). Calculate the de Broglie wavelengths of the following objects and discuss the relevance of quantum mechanics in describing their behaviour: (c). a neutron moving at 100 m/s.
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- Which of these expressions would yield the wavelength of light in meters emitted when an electron drops from orbit n = 3 to n = 2 in a Bohr hydrogen atom? Given h = 4.14 x 10-15 eVs and c = 3.00 x 108 m/s. a. 1.89/hxc b. hc/1.89 c. 1.89 x h x c d. (1.51 + 3.4)/hc e. hc/3.4Analyze the symbols.7. A mass of 150 g of a element is known to contain approximately 4.52 x 1024 atoms. What is the element? f60 s Fluorine Silicon 160 ssfo Phosphorus Nitrogen Sodium Sulfur Carbon sto Magnesium ssf60 ssf60 ssfó0 ss Neon Aluminum Oxygen ssf60 ssf60 ssf60 ssf60 ssf60 ssf60 ssfó0 ssf 160 s060- ssf60 ssf60 ssfo0 ssf60 o ssf60 ssf60 ssf60 ssf60 ssf60 ssf60 ssio 60 ssf60 ssf60 ssf60 ssf60 ssf60 s ssf60 ssf60 ssf60
- 1. The equation q = ne tells us that charge is quantized in the form of small packets. Note that q is charge in coulomb (C), e is the charge of the electron, and n is the number of electrons. Using this equation, calculate the number of electrons that make up a charge of +24mC.How did we know that a=(Uₒ/2)?