QUESTION 23 Moseley's work in1913 established Bohr's model of the nuclear atom by showing that resulting from the bombardment of an element by electrons was directly related to the atomic number of the element the emission of fluorescence the energy of alpha particles the intensity of light O the square root of frequency of x-rays

When light is shined on a thin sheet of metal, electrons are released with a kinetic energy of 6.81 x 10-21 J. If the binding energy of the metal is known to be 6.25 x 10-19 J, what is the wavelength of the light, in nm? Do not report units in your answer. Report your answer to one decimal places.

In the Bohr model of the atom, what must electrons do to move up, or down, between the various orbitals?   Pick any/all correct answers balance oxidation number emit radiation increase charge decrease charge absorb radiation emit a phonon

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Alpha emissions from Po-210 are used in paper manufacturing to reduce static electricity. This is possible since alpha particles   can easily knock off electrons   catalyze chemical reactions, which involve valence electrons   are positively charged so they attract electrons   create enough heat to catalyze chemical reactions that use up electrons

7.95 x 10^18 electrons run through a given wire per second. What is the total mass, in grams, of electrons that pass through the wire in one hour? The mass of one electron is 9.1094x10^-31 kg