CHEMISTRY GRADE 1127. A hydrogen atom is excited to the n =8 energy level. It emits aas it falls to the n= 2 energy level. Calculate the:photon of lightwavelength of light emitted, andb frequency of the light emitted28. The electron of a hydrogen atom is in the n = 3 level. What is its enerovoCalculate the wavelength of the light emitted when an electron falls from nto the n = 1 state in hydrogen atom.29.30. The photon emitted by a cyclotron has a velocity of 1.50 × 10³ m s-1. Whatthe wavelength of this photon? Given that the mass of photon = 1.676 × 10-27and Planck's constant = 6.62 × 10-34 J.s.31Write the number and the letter for the orbital that corresponds to the followpairs of n and I quantum numbers:n = 3, 1 = 1acn = 3, 1= 2n = 4, 1 = 0dn=5, 1 = 332.Write the electron configurations for the following atoms and ions:aFe3+c Cr3+b Vd Alt33. Identify the transition element (s) from the following:a 40Zr8gRad 3,Kr

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CHEMIS A hydrogen atom is excited to the n = 8 energy level. It emits a photon of ligh as it falls to the n = 2 energy level. Calculate the: a wavelength of light emitted, and b frequency of the light emitted the n= 3 level. What is its enerovo

CHEMIS A hydrogen atom is excited to the n = 8 energy level. It emits a photon of ligh as it falls to the n = 2 energy level. Calculate the: a wavelength of light emitted, and b frequency of the light emitted the n= 3 level. What is its enerovo

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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Concept explainers

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.

Question

CHEMISTRY GRADE 11
27. A hydrogen atom is excited to the n =8 energy level. It emits a
as it falls to the n= 2 energy level. Calculate the:
photon of light
wavelength of light emitted, and
b frequency of the light emitted
28. The electron of a hydrogen atom is in the n = 3 level. What is its enerovo
Calculate the wavelength of the light emitted when an electron falls from n
to the n = 1 state in hydrogen atom.
29.
30. The photon emitted by a cyclotron has a velocity of 1.50 × 10³ m s-1. What
the wavelength of this photon? Given that the mass of photon = 1.676 × 10-27
and Planck's constant = 6.62 × 10-34 J.s.
31
Write the number and the letter for the orbital that corresponds to the follow
pairs of n and I quantum numbers:
n = 3, 1 = 1
a
cn = 3, 1= 2
n = 4, 1 = 0
dn=5, 1 = 3
32.
Write the electron configurations for the following atoms and ions:
a
Fe3+
c Cr3+
b V
d Alt
33. Identify the transition element (s) from the following:
a 40Zr
8gRa
d 3,Kr

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