(a) The position of an electron is known to be within 10 Å(1.0 × 10-9m). What is the minimum uncertainty in itsvelocity component in this direction?(b) Repeat the calculation of part (a) for a helium atom.

Q: How many electrons in an iron atom (Fe) have an angular momentum quantum number, I, equal to 1?

A: Quantam number are the set of four number which give all information about an electron of an atom.…

Q: Calculate the probability that a particle will be found in a tiny slice of space between 0.49L and…

A: Probability of particle in a length L is equal to,

Q: Assuming that the resolution of an electron microscope is equal to the de Broglie wavelength of the…

A: Speed of electron and wavelength are linked to each other as follows:

Q: 2. Sketch an energy level diagram that shows the degeneracies of the lowest energy levels of a…

A: Energy for a particle in a 3-D box is given: E=Ex+Ey+Ez   =nx2h28ma2+ny2h28mb2+nz2h28mc2 here,n…

Q: No object can travel faster than the speed of light, so itwould appear evident that the uncertainty…

A: Heisenberg's uncertainty principle :  multiplication of uncertainty in momentum and the uncertainty…

Q: What is the kinetic energy (in J) of a neutron with a wavelength of 73.2 pm?

A: Wavelength = 73.2 pm = 73.2 x 10-12 m

Q: 9 when a sodium atom is deexcited from the first excited state to the ground state, it emits Photon…

A:

Q: 1. What is the wavelength of a wave of velocity 10 m/s and frequency 200 Hz?

A: Given data, Velocity = 10 m/s Frequency = 200 Hz. To calculate the wavelength.

Q: What is the difference in energy between the two levels responsible for the ultraviolet emission…

A: Given, wavelength for the ultraviolet emission line of the magnesium atom = 285.2 nm we are asked to…

Q: What should be the speed of a beam of particles of mass 9.25×10-28 g in order to have a wavelength…

A: Given : Mass of particles = 9.25 X 10-28 g = 9.25 X 10-31 Kg                                (since 1…

Q: Write the steady-state symbol for the following atoms 11Na , 37Rb , 55Cs , 87Fr , 3Li

A: The ground state term symbol is generally represented as, 2S+1LJ Where, S is the total spin quantum…

Q: Suppose that the uncertainty in determining the position of an electron circling an atom in an orbit…

A: Heisenberg uncertainty principle states that at any given time there will be some uncertainty…

Q: What is the wavelength (in pm) of a proton traveling at a speed of 6.21 km/s?

A: The wavelength (in pm) of a proton travelling at a speed of 6.21 km/s is calculated as,

Q: The speed of a certain electron is 995 km s−1. If the uncertainty in its momentum is to be reduced…

A: According to Heisenberg’s uncertainty principle, if the accurate momentum of particle is known, its…

Q: What wavelength A should the astrophysicist look for to detect a transition of an electron from the…

A: We know the Rydberg's equation  => 1 / λ = RH ×(1/n22−1 /n12) where, λ is the wavelength , RH =…

Q: What is the energy (in kl) of 1 mole of yellow photons of wavelength 275 nm?

A: We first calculate the energy for one photons. Then this value will be multiplied by 6.023 x 1023 to…

Q: Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of…

A: The formula for heat absorbed by water can be written as follow: mwaterC∆T Here C is the specific…

Q: Calculate and compare the energy of a photon ofwavelength 3.3 mm with that of wavelength 0.154 nm.

A: Given: Wavelength = 3.3 mm Wavelength = 0.154 nm

Q: Calculate the freqwency of wavelength radiation with a of 495nm

A: Given that , Wavelength of radiation = 495 nm = 495 x 10-7 cm Speed of light = C = 3 x 1010 cm/sec

Q: 2. What is the significance in the increase/decrease on the value of the principal quantum number?

A: Principle quantum number represents the shell in which an electron is present. It is represented by…

Q: For a 2-D box calculate the probability for finding an electron in the region of: x = 0.37a to 0.43a…

A:

Q: when a sodium atom is deexcited from the first excited state to the ground state, it emits 9 Photon…

A:

Q: What is the numerical probability of finding an electron in a box of length L between 0 and L/4 when…

A:

Q: When a photon of light with wavelength 101.7 nm is shone upon a metal surface with a work function…

A: To find velocity.

Q: Suppose that photons of blue light (430 nm) are used to locate the position of a 2.80-g Ping-Pong…

A:

Q: For 1= 2, what are the possible values of m?

A: l is called azimuthal quantum number and it gives information regarding the subshell. ml is magnetic…

Q: The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 68.0 m/s, what is its…

A: Hi. Since part A has been solved by you, so we will solve Part B for you. Thanks

Q: What are the implica tions of the uncertainty principle?

A: Heisenberg's Uncertainty Principle states that there is inherent uncertainty in the act of measuring…

Q: If you compare orbitals with different principal quantum numbers (n) but the same angular momentum…

A:

Q: An electron is confined to a square well of length L. What would be the length of the box such that…

A: The energy of the electron in three dimensional box is written as, En=(nx2+ny2+nz2)h28meL2

Q: If the uncertainty in velocity of an electron is 2.60E+03 m/s, what is the minimum uncertainty in…

A:

Q: What is the minimum uncertainty in the position of a small particle if it has velocity of 40.0km/s…

A: Solution -

Q: For the model of a particle in a one-dimensional box, sketch the wavefunctions from n = 1 to n = 4…

A:

Q: What information does the term symbol 1D2 provide about the angular momentum of an atom?

A: The letter D represents the value for L (total orbital angular momentum) and for the given case it…

Q: What information does the term symbol 3F4 provide about the angular momentum of an atom?

A: Atomic term symbols tell you the total orbital angular momentum of the atom (L), and the…

Q: 1. Calculate the frequency and the energy of a mole of photons associated with an electromagnetic…

A:

Q: What is the minimum uncertainty in the position of a bullet of mass 5.0 g that is known to have a…

A: Heisenberg uncertainty principle Δx. Δv ≥ h4πm To calculate uncertainty in position, we uses this…

Q: A photon with a wavelength of 162.7 nm was used to induce the photoelectric effect. If the work…

A: Wavelength of photon = 162.7 nm Work function of metal = 6.49 eV

Q: Calculate the probability that a particle will be found in a tiny slice of space between 0.49L and…

A:

Q: An electron moves in a two-dimensional rectangular box with the dimensions, Lx= 5.00 Å and Ly =3.00…

A: A two-dimensional rectangular box has two dimensions of length and breadth and the energy of the…

Q: Explain the origin of quantization of translational motion. Write an equation for the energy of a…

A: The concept of quantization of energy was originated by Planck's through his theory known as…

Q: A proton in a linear accelerator has a de Broglie wavelength of 142 pm . What is the speed of the…

A:

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.