The scanning of a sample on surface of metal by probe in a scanning tunneling microscope has to be explained. Concept introduction: In quantum mechanics , tunneling relies on probability interpretation. Consider an atom, which contains an electron near a proton (A) and another proton (B) far from proton (A). In general, energy is needed to move electron from region of proton (A) to proton (B). But in quantum mechanics, the probability of electron in the atom being located far from proton A near proton B is small but not zero. This indicates that an electron belongs to proton A can find itself close to proton B without spending much energy. The electron is said to be tunneled from one proton to another.
The scanning of a sample on surface of metal by probe in a scanning tunneling microscope has to be explained. Concept introduction: In quantum mechanics , tunneling relies on probability interpretation. Consider an atom, which contains an electron near a proton (A) and another proton (B) far from proton (A). In general, energy is needed to move electron from region of proton (A) to proton (B). But in quantum mechanics, the probability of electron in the atom being located far from proton A near proton B is small but not zero. This indicates that an electron belongs to proton A can find itself close to proton B without spending much energy. The electron is said to be tunneled from one proton to another.
The scanning of a sample on surface of metal by probe in a scanning tunneling microscope has to be explained.
Concept introduction:
In quantum mechanics, tunneling relies on probability interpretation. Consider an atom, which contains an electron near a proton (A) and another proton (B) far from proton (A). In general, energy is needed to move electron from region of proton (A) to proton (B). But in quantum mechanics, the probability of electron in the atom being located far from proton A near proton B is small but not zero. This indicates that an electron belongs to proton A can find itself close to proton B without spending much energy. The electron is said to be tunneled from one proton to another.
Due to the small size of the subatomic particles, the only way scientists learned to probe themis
to use photons. Based on the implications of the particle-like behavior of photons, this greatly
changed how scientists thought about their experiments. In order to obtain more precise
measurements, scientists had continued to use higher energy photons. Due to the larger
momentum associated with higher energy photons, this meant that the measurements would
more greatly alter the momentum of the subatomic particle after the measurement was made.
For a particular atom, the electron is estimated to travel at a speed of 3.46 X 10 km/s with an
error of 2.76%. How uncertain would the electron's position measurement be in units of
nanometers? Round your final answer to two significant figures.
NASA communicates with the Space Shuttle and International Space Station using Ku-band microwave radio. Suppose NASA transmits a microwave signal to the
Space Shuttle using radio waves with a frequency of 16.GHz. Calculate the wavelength of these radio waves.
Round your answer to 2 significant digits.
An electron within the hydrogen atom "falls" from energy level 9
to energy level 2. Using the Rydberg Equation calculate the
wavelength (in nm) of the emitted photon. Do not type units
into your answer.
Chapter 7 Solutions
OWLv2 with Student Solutions Manual eBook for Ebbing/Gammon's General Chemistry, 11th Edition, [Instant Access], 4 terms (24 months)
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell