Assume a hydrogen atom is a sphere with diameter 0.100 nm and a hydrogen molecule consists of two such spheres in contact. (a) What fraction of the space in a tank of hydrogen gas at 0°C and 1.00 atm is occupied by the hydrogen molecules themselves? (b) What fraction of the space within one hydrogen atom is occupied by its nucleus, of radius 1.20 fm?

Q: An alpha particle (Z = 2, mass = 6.64 x 10-27  kg) approaches to within 1.00 x 10-14 m of a carbon…

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Q: How many electrons, protons, and neutrons are contained in the following atoms or ions: (a) 6Li, (b)…

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Q: Q/ Prove that the frequency of the X-ray spectrum line (k_a) emitted by an element with atomic…

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Q: Two protons in thorium nucleus are 3 x 10^-15 m apart. What the mutual potentialenergy?

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Q: You are working on determining the angle that separates two hybridized orbitals. In the process of…

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Q: . A general expression for the energy levels of one-electron atoms and ions is uk q°q² E, 2h'n? Here…

A: Write the given expression for energy level of hydrogen-like atom

Q: Two Plutonium atoms (atomic mass = 244) both gain 2 electrons each. Draw a FBD and calculate the net…

A: The free body diagram of the forces : The electric force is repulsive and the gravitational force is…

Q: Calculate the van der Waals second viral coefficient (B) using Z vdw at 299.6 K, where Zydw is given…

A: Given : Zvdw = 299.6 K Vm,c = 122.2 cm3/mol = 0.1222 m3/mol

Q: Suppose that the electron had no spin and that the Pauli exclusion principle still held.Which, if…

A: Considering the spin degree of freedom to be not there, the available electron states for each shell…

Q: The energy difference between the two levels arising from the spin-orbit coupling in a d-orbital is…

A: The solution is given below

Q: Find the concentration of electrons & holes in (a) N-type Si at 300K, if the conductivity is…

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Q: For a reaction to be spontaneous, the sign of Gibbs Free Energy G is

A: Required : Gibb's free energy for spontaneous process.

Q: Calculate holes and electrons concentration in compensated silicon p-type sample. If T=300 K,…

A: Solution: The electron concentration for p-type semiconductor at 300K is given by:…

Q: What is the probability of finding a hydrogen electron (n=2, l=1, ml =-1) within three bohr radii of…

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Q: The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per…

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Q: a hydrogen atom was placed in an external uniform magnetic field of 240 T

A: We know that the energy difference between the two states is given as  ∆E = 2μBB ----- eq1  B is the…

Q: Consider a model of the nucleus in which the positive charge (Ze) is uniformly distributed…

A: The electric charge density of a sphere is,

Q: At a certain temperature, the electron and hole mobilities in intrinsic germanium are given as 0.43…

A: Electron mobility: e = 0.43 m2/Vs Hole mobility: h = 0.21 m2/Vs  Electron concentration = Hole…

Q: Calculate the yan der Waals second viral coefficient (B) using Zy at 335.6 K, where Z is given as…

A: Given : Zvdw = 335.6 K Vm = 132.6cm3/mol  = 1.326m3/mol

Q: The ground state of the an ion corresponds to the og1s orbital which is given by the expression: 1 1…

A: Note that the ϕ1 and ϕ2 functions correspond to the first and the second nuclei, respectively. The…

Q: What is the magnitude of the electric field at a distance of 0.1 nm from a thorium nucleus? I have…

A: Given: The distance from the nucleus of the thorium is 0.1 nm.

Q: When neptunium (Np) and plutonium (Pu) were discov-ered, the periodic table did not include the…

A: Answer:-     (a)              The electron configuration of neptunium (Np) (Z = 93) = Rn7s2 5 f4 6…

Q: By using the principle of accuracy, he proved the impossibility of the electron being inside the…

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Q: As long as photons penetrate into the depletion region, liberated electrons move into the top wafer…

A: As photons enter the depletion region of the semiconductor, they knock off electrons.  These knocked…

Q: Q/ For a state of a nucleus with a definite mass (M) and not infinity around which an electron of…

A: The state of nucleus with a definite mass (M) and not infinity around which an electron of mass (m)…

Q: Not only particles such as electrons and protons but also entire atoms can be classified as fermions…

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Q: Assume you have just purchased a supply of 100Ci of 99MO. Plot the variation of 99 Mo activity and…

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Q: Calculate the ratio of nuclei in the higher spin state to those in the lower spin state, Nh/Nl, for…

A: Given data The magnetic field strength B=7.05 T The difference in energy is ∆G=0.030 J/mol The…

Q: How many electrons, protons, and neutrons are contained in the following atoms or ions: (a) 9Be+,…

A: a) The mass number and atomic number of Beryllium is  A=9Z=4 The number of protons is P=4 The number…

Q: In a scattering experiment, you concentrate on Alpha particles with impact parameters b=0, 1×10^-3,…

A: Thomson’s atomic model This model is also known as plum-pudding model. According to this model, the…

Q: the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about…

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Q: The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per…

A: Given : Number of silicon atoms, N = 5 × 10 28 atom/m3 Number of arsenic atoms, nAS = 5×1022atom/m3…

Q: A sample of Si at 300 K doped with 1016 cm3 Boron, with recombination lifetime 3 us. It is exposed…

A: We have givenSi at 300 k doped with 1016 cm-3 Boron Lifetime=3 μsGeeneration rate =1020 / cm3/s

Q: The linear absorption coefficient for 5-MeV g fourth the intensity of beam of such gamma O A. 8.9 mm…

A: GivenLinear absorption coefficient for 5 MeV gamma rays in lead ,α=78 m-1And IntensityIIo=14

Q: How much work is done by a gold nucleus placed inside a uniform electric field with a potential…

A: Given Data:- Potential difference inside the nucleus is ∆V=220 V Atomic number of Gold is Z=79…

Q: Using the principle of precision, prove the impossibility of an electron inside the nucleus, noting…

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Q: In the planetary model of the atom where electrons orbit a centralized nucleus, what is the…

A: Electrons orbit a centralized nucleus. Radius of nucleus is 10-10 m Radius of electron orbits is…

Q: Consider the following nuclear reaction 5$Ni +5% Zn →+ X +2}p (a) Determine A and Z of the nucleus…

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Q: -2.50х 106С +3.50 х 106С 2.00 cm -9 B 2.00 сm E +q b+ b- +4.50 х 10-6С +1.80 х 106 С -3.70 х 106 С

A: D) Resultant electric force on point D is,  F = (k*q2 /2a2 )    = (8.99 * 109 )* (-3.7 * 10-6 )2 /…