A neutral atom of the element potassium (K) has A 19 protons. B. 20 neutrons. C. 39 electrons. 58 neutrons.

Q: •5 (a) How many € values are associated with n = 3? (b) How many mę values are associated with l :…

A: The principal quantum number (n) is given 3.  (i) As we know, the orbital quantum number (l) is 0 to…

Q: )Use the Bohr model of the atom to calculate the orbiting speed of the electron in the n = 5 state

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Q: 1. Why can’t visible light be used to view atomic nuclei?

A: Because an atom is so much smaller than the wavelength of visible light, it can't affect the way…

Q: 3) If the angular momentum of an electron atom of hydrogen is equal to 3.15 x10-4 J.S in what orbit…

A: SOlution: Given that angular momentum L = 3.15x10-34 JS

Q: •34 The wavelength of the K line from iron is 193 pm. What is the energy difference between the two…

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Q: Q33. The force between the nucleus in the hydrogen atom and the electron in the first orbit is F.…

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Q: A) What is meant by a "long" range force, and what is meant by a "short" range force? Which of the…

A: (a) Long range force: These are the forces act on objects outside the range of three angstroms.…

Q: 10. What Is the rest energy of a hydrogen atom whose atomic mass is 2.014101778? (mproton =…

A: Given: Atomic mass of hydrogen, m=2.014101778 u c2=931.5eV/u Formula: Rest energy is given as:…

Q: 16). How much energy is generated when a frequency of 8.32 e 14 Hz is created in an electron loss.

A: We know, E=hf

Q: 12. A beam of 3-MeV photons with intensity 108 cm-2s-1 irradiates a small sample of water. (a) How…

A: Given: The beam of energy = 3Mev intensity (I) = 108 cm-2s-1 Now, A) The photon water interaction…

Q: 11. During Einstein's Photoelectric Experiment, what changes are observed when the frequency of the…

A: since, you post too multiple questions, i am solving first three for you.

Q: 16). How much energy is generated when a frequency of 2.74 e 14 Hz is created in an electron loss.

A: The energy E of a photon is given by E = hf where h the Planck's constant f is the frequency

Q: An alpha particle is made up of two neutrons and two protons in a bound state. Consider a stationary…

A: An alpha particle is actually H24e nucleus. It consists of two protons and two neutrons. Therefore,…

Q: An alpha particle (a : = two protons, two neutrons) moves into a stationary gold atom (Au = 79…

A: Mass of alpha particle (m) = 4 u charge on alpha particle (q) = 2 e charge on gold atom (Q) = 79…

Q: 7. The magnitude of the magnetic field at the center of a Bohr-model hydrogen atom caused by the…

A: Since you have asked multiple questions, we will answer the first one ( question 7) for you. In case…

Q: 4.If someone wanted to build a scale model of the atom with a nucleus 1 m in diameter, how far away…

A: Given: Diameter = 1m or radius rn = 0.5 m To determine: How far away would the nearest electron need…

Q: What is the evidence that the cathode rays in a discharge tube are negatively charged particles?

A: First Evidence: Cathode rays are negatively charged particles and it is originated from the cathode…

Q: A neutral atom is designated as 40 18 X. How many (a) protons, (b) neutrons, and (c) electrons does…

A: Calculating the number of protons, neutrons and electrons in the given neutral atom:

Q: 5. A hydrogen atom has an electron in the n = 4 state. What is the total energy of the electron? eV

A:

Q: One way to sterilize food products such as meats and poultry is to irradiate them with a beam of…

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Q: 11. Below is the energy level diagram for atomic hydrogen transitions which terminate at the first…

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Q: Q2: Calculate the electron velocity in the second orbit of the hydrogen atom?

A: Solution; To calculate the velocity of electron in 2nd orbit

Q: 19 A hydrogen atom in excited energy state 24 10"drops down to the ground state at energy level…

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Q: 1. An incoming light beam has frequency 9.7 x 1014 Hz. (Use h=6.626 x 10-34 J.s) a.) How much…

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Q: 1) Fill in the missing information from the table below: # protons # neutrons isotope #electron- Lo…

A: The element with the atomic number (number of protons or number of electrons )17 is chlorine (Cl).

Q: 1. Electron + Proton Calculate the potential energy of an electron and proton in a hydrogen atom…

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Q: Homework Question 13. A proton is shot at the nucleus of a gold atom. When the proton is a long way…

A: Given: The initial speed of the proton is 6x106 m/s ( for away). The final speed of the proton is…

Q: 10.0 U 172 As,4= Rg+ Ry RI = 4L %3D R s,4.5 = (Ro )6.30 = 6.31 Rz = 52 R3.4 R2,3,4,5= Rz+ R3,4,5…

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Q: 1) Which of the following is NOT a main part of the atom? a) Protons b) Charges c) Nucleus d)…

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Q: 6.8 N 4 N 10 N RT 10 N 10 N RT R 10 0 8.2 N 4 0 10N 1.2 0 (a) (b) (c)

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Q: A 1.00-fm photon has a wavelength short enough to detect some information about nuclei. (a) What is…

A: a) The expression for the De-Broglie equation is,

Q: a- Calculate the radius of the first orbital of the hydrogen atom according to the Bohr model? What…

A:

Q: Example lcée's seet) Ng cmol Calculate the radius r of orbit and velocity of an electrons having…

A: For hydrogen atom, Z=1

Q: Determine the distance between the electron and proton in an atom if the potential energy U of the…

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Q: 9. Look up the values of the quantities in ag =- 4x²mekq? m - and verify that the Bohr radius ap is…

A: The expression for the Bohr radius is,

Q: QUESTION 1 code: 002 Answer the following questions about the hydrogen atom e. v the energy of the…

A: These are concept oh hydrogen atom and its energy. As per policy i can answer only first three…

Q: 1a) Use the table below to determine the energy in eV of the photon absorbed when an electron jumps…

A: (a) When an electron jumps up from n = 1 to n =2, the energy of the emitted photon will be the…

Q: 9. What observations in the gold foil experiment made Rutherford conclude that atoms are mostly…

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Q: Nuclear radii may be measured by scattering high-energy electrons from nuclei. (a) What is the de…

A: Given:- Nuclear radii may be measured by scattering high-energy electrons from nuclei   Find:- (a)…

Q: How many protons, neutrons, and electrons are in the atom given as: :-1 30si - 14 Protons = Neutrons…

A:

Atomic Number

Elements are the building blocks of all the matter that exist in the universe. Every element is made up of atoms that have protons, electrons, and a nucleus. In order to know the difference between the elements, an atomic number is used. Every element has its own individual atomic number. The atomic number is a single most important characteristic of an atom.