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11 Nov 2019
4. Which of the following figure(s) represent a result having high precision? a) Figure I only b) Figure II only c) Figure III only d) Figure I and Figure II e Figure Il and Figure III Express the number 2.38 x 10' in common decimal form. a) 238000 b) 0.0000238 c) 0.000238 15. 23800 e) 2380 16. A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon at this wavelength, the frequency of this light is a) 8.61 x 10-16 s- b) 7.70 Ã 10-19s" c) 1.16 Ã 10155 d) 77.3 s e) none of these What is the energy of a photon of violet light that has a wavelength of 425 nm? a) b) 17. 4.25 Ã 10-7 J 4.67 Ã 10-19 J c) 7.05 x 104 d) 8.44 x 10-32J e) 2.14 x 10"J Which of the following best describes an orbital? a) space where electrons are unlikely to be found in an atom b) space which may contain electrons, protons, and/or neutrons c) the space in an atom where an electron is most likely to be found d) small, walled spheres that contain electrons e) a single space within an atom that contains all electrons of that atom 18. 19. Express 165,000 in exponential notation 1.65000 Ã 105 1.65 Ã 105 1.6500 Ã 10-5 1.65 Ã 10-5 a) c) d) e) 165 x 10 20. How many forbitals have the value n 2 a) 0 b) 3
4. Which of the following figure(s) represent a result having high precision? a) Figure I only b) Figure II only c) Figure III only d) Figure I and Figure II e Figure Il and Figure III Express the number 2.38 x 10' in common decimal form. a) 238000 b) 0.0000238 c) 0.000238 15. 23800 e) 2380 16. A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon at this wavelength, the frequency of this light is a) 8.61 x 10-16 s- b) 7.70 Ã 10-19s" c) 1.16 Ã 10155 d) 77.3 s e) none of these What is the energy of a photon of violet light that has a wavelength of 425 nm? a) b) 17. 4.25 Ã 10-7 J 4.67 Ã 10-19 J c) 7.05 x 104 d) 8.44 x 10-32J e) 2.14 x 10"J Which of the following best describes an orbital? a) space where electrons are unlikely to be found in an atom b) space which may contain electrons, protons, and/or neutrons c) the space in an atom where an electron is most likely to be found d) small, walled spheres that contain electrons e) a single space within an atom that contains all electrons of that atom 18. 19. Express 165,000 in exponential notation 1.65000 Ã 105 1.65 Ã 105 1.6500 Ã 10-5 1.65 Ã 10-5 a) c) d) e) 165 x 10 20. How many forbitals have the value n 2 a) 0 b) 3
Deanna HettingerLv2
11 Nov 2019