If the size of a nucleus (in the range of 10-15 to 10-14 m) is scaled up to the tip of a sharp pin, what roughly is the size of an atom ? Assume tip of the pinto be in the range 10-5 m to 10-4 m.

Q: What is the Vrms of Hydrogen atom (mass = 1.674 x 10^-27 kg/atom) at 300 K. 5.5 x 10^3 m/s O 1.2 x…

A: Given information Temperature of the hydrogen atom T = 300 K Mass of the hydrogen atom m = 1.674 ×…

Q: Where in the atom is most of its mass concentrated?

A: The atom comprises of three sub-atomic particles, proton electron and neutron. The protons and…

Q: If the atom  travels in a circle under the action of this force, show that the total energy…

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Q: How many shells are represented in the presently known periodic table?

A: In the current periodic table elements may have up to seven shells, and in each shell, there are…

Q: Nucleus A has 5 protons and 6 neutrons, while nucleus B has 6 protons and 5 neutrons. Are these…

A: Isotopes are the elements which are same atomic number

Q: After a hydrogen atom absorbs a visible photon which of these may occur?   a. electrons jump up…

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Q: 70 3Ga element: atomic #: # neutrons: # electrons: 31 15 p3- element: atomic #: # electrons: atomic…

A: Solution: To find element name, atomic mass, neutron, proton and electron

Q: If atoms exist, why can’t we see them with visible light?

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Q: How may the energy levels of an atom be detected directly, rather than by spectral analysis?

A: Given: Asked how may the energy levels of an atom be detected directly, rather than by spectral…

Q: Suppose 8.5x10−19 J of work is done to bring the nucleus of an atom from some infinite distance away…

A: Electric potential energy of the nucleus =work done to bring the nucleus to the particular location…

Q: The Hydrogen 3 nucleus (also called Tritium) consists of: a) two neutrons and one proton b) two…

A: Hydrogen-3 or H13 or Tritium is a radio-isotope of hydrogen.

Q: What is an element?

A: The matter that exists in the purest form is called an element. They cannot be changed or broken by…

Q: diameter of an atom is 1.0×10−10 m and the diameter of its nucleus is 1.0×10−14 m . What percent of…

A: Assume that all mass is concentrated in the nucleus.  And both nucleus and atom are spherical in…

Q: The diameter of an atom is 1.2 × 10-10 m and the diameter of its nucleus is 1.0 × 10-14 m. What…

A: Diameter of the atom R=1.2 × 10-10 m The diameter of the nucleus r=1.0 × 10-14 m Consider both atom…

Q: The smallest 14C/12C ratio that can be reliably measured is about 3.0 * 10-15, setting a limit on…

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Q: When a nucleus undergoes alpha decay, _____. its mass number decreases by 4…

A: Given data:  Type of decay : alpha decay Required: What change in mass number and atomic number

Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…

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Q: What energy (in Joules) is released when an electron in a hydrogen atom falls n=5 to n=2?

A: electron in a hydrogen atom falls n=5 to n=2.

Q: Atom A has a larger atomic mass than atom B. Does this mean that atom A also has a larger atomic…

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Q: Why are spectral lines often referred to as “atomic fingerprints”?

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Q: The hydrogen atom's nucleus is a proton (mass 1.7 x 1027 kg), outside of which there is a single…

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Q: What do you think is the reason for an increasing atomic radius within one group?

A: As we move down a group the number of energy levels increase.

Q: 1 atomic mass unit is about: 1 atoommassa-eenheid is ongevee O A. 1.66 x10-31 kg B. 1.66 x10-27 kg…

A: Atomic mass unit is defined as the unit of mass which is equal to 1/12 of the mass of carbon-12…

Q: In a radioactive substance at t = 0, the number of atom is 8 x 104 . its half-life period is 3 yr.…

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Q: What revolves about the positive nucleus in a definite orbit ? a. neutron o b. electron O C. proton…

A: Solution- According to Bohr's model in atomic physics the electrons travels in circular orbits…

Q: A proton, which is the nucleus of a hydrogen atom, can be modeled as a sphere with a diameter of 2.4…

A: The given values are,

Q: How is it possible for an element to decay “forward in the periodic table”—that is, to decay to an…

A: It is possible for an element to decay “forward in the periodic table”—that is, to decay to an…

Q: The fictitious element cincinnatium O has five stable isotopes. Their masses and natural abundances…

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Q: Part 3 Atomic Cakulatinns: Complete the chart belowe. 10. Hof p #of n # of e Element Atomic # Mass #…

A: Atomic # - No. of protons or electrons Mass # - No. of protons + No. of neutrons

Q: In another universe, the electron is a spin@3/2 rather than a spin@1/2 particle, but all other…

A: Given that In another universe, the electron is a spin@3/2 rather than a spin@1/2 particle, but all…

Q: An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project.…

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Q: IR radiation can... ionize atoms. cause valence e-1 transitions. induce rotations in molecules.…

A: Required : Infra red radiation can ..

Q: a Atom X and atom Y have the same mass number, but they have different atomic numbers. Are they…

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Q: What is the mass-defect of Nickel, N-62 (atomic number = 28, atomic weight = 61.928345) Group of…

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Q: Are most of the atoms around us younger or older than the Sun?

A: Step 1 Sun is a star at the center of our universe. It is a sphere of hot plasma. Right now it is on…

Q: If Å = 3î – 29 + 4R and B = -5î + 2ĵ – R, then what is (A + B)•(Ã × )?

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Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.