6. Metals can be identified using the emission spectrum produced when a sample is burned in a flame. The flame excites the electrons, which then transition to lower levels and produce emission lines. (a) The emission line used for zinc determinations in spectroscopy is 214 nm. If 7.7 ×1013 Zn atoms emit light in the flame at any given instant, what energy (in J) must the flame continuously supply? (b) During an emission, electrons move from a higher energy to a lower energy orbital. Which of following are valid transitions that produce lines in the emission spectrum of Zn? [Ar] 4s² 3d10 [Ar] 3d10 [Ar] 4s 3d10 [Ar]4s' 3d0 6s' [Ar] 4s? 3d10 [Ar] 4s' 3d! [Ar] 4s' 3d10 6s' [Ar] 4s? 3d10 [Ar] 4s² 3d!0 → [Ar]4s² 3d!0 4p² [Ar] 3d'0 → [Ar] 4s² 3d!0

6. Metals can be identified using the emission spectrum produced when a sample is burned in a flame. The flame excites the electrons, which then transition to lower levels and produce emission lines. (a) The emission line used for zinc determinations in spectroscopy is 214 nm. If 7.7 ×1013 Zn atoms emit light in the flame at any given instant, what energy (in J) must the flame continuously supply? (b) During an emission, electrons move from a higher energy to a lower energy orbital. Which of following are valid transitions that produce lines in the emission spectrum of Zn? [Ar] 4s² 3d10 [Ar] 3d10 [Ar] 4s 3d10 [Ar]4s' 3d0 6s' [Ar] 4s? 3d10 [Ar] 4s' 3d! [Ar] 4s' 3d10 6s' [Ar] 4s? 3d10 [Ar] 4s² 3d!0 → [Ar]4s² 3d!0 4p² [Ar] 3d'0 → [Ar] 4s² 3d!0

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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