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1. Calculate the energy of a photon with a frequency of 3x1015 Hz.
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What are the first three quantum numbers for the electrons located in subshell 2s?
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An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³
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Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a
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1. Calculate the energy of a photon with a frequency of 3x1015 Hz....
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