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Suppose you are given a chance to repeat the alpha-particle scattering experiment using a thin sheet of solid hydrogen in place of the gold foil. (Hydrogen is a solid at temperatures below 14 K.) What results do you expect?

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To analyze the expected results of repeating the alpha-particle scattering experiment using a thin sheet of solid hydrogen instead of gold foil, we can follow these steps: ### Step 1: Understand the Composition of Hydrogen Hydrogen consists of one proton and one electron. In solid hydrogen, the atoms are closely packed, but the nucleus is still just a single proton. The atomic number (Z) of hydrogen is 1, which means it has a charge of +1e (where e is the elementary charge). ### Step 2: Compare Hydrogen to Gold In the original Rutherford experiment, gold was used because it has a high atomic number (Z = 79), which means it has a large positive charge and a relatively large nucleus (with many protons and neutrons). This results in a significant deflection of the incoming alpha particles (which are helium nuclei, Z = 2) when they approach the gold nuclei. ...
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The existence of negatively charged particle in an atom was shown by J.J. Thomson as a result of the studies of the passage of electricity through gases at extremely low pressure known as discharge tube experiments. When a high voltage of the order of 10,000 volts or more was impressed across the electrodes, some sort of invisible rays moved from the negative electrode to the positive electrode these rays are called as cathode rays. Cathode rays travel in straight path in absence of electrical and magnetic field . Cathode rays consist of material part and charged particles? Cathode rays produce X-rays and light is emitted when they strike on ZnS screen. Cathode rays penetrate through thin sheets of aluminium and other metals . They affect the photogenic plate and passes heating effect when they strike on metal foil. The raito of charge to mass i.e charge/mass is same for all the cathode rays irrespective of the gas used in the tube. The existence of positively charged particle in an atom was shown be E. Goldstein. He repeated the same discharge tube experiments by using a perforated cathode. It was observed that when a high potential difference was applied between the electrodes, not only cathode rays were produced but also a new type of rays were produced simultaneoulsy from anode moving towards cathode and passes through the holes or canal of the cathode. These termed as canal rays or anode rays. These rays travel in straight lines and consists of positively charged particles. These rays have kinetic energy and produces heating effect also. The e/m ratio of these rays is smaller than that of electrons. Unlike cathode rays, their e/m value is dependent upon the nature of the gas taken in the tube. These rays produced flashes of light on ZnS screen and can pass throughs thin metal foils. They can produce physical and chemical changes and are capable to produce ionisation in gases. For cathode rays the value of e/m:

The existence of negatively charged particle in an atom was shown by J.J. Thomson as a result of the studies of the passage of electricity through gases at extremely low pressure known as discharge tube experiments. When a high voltage of the order of 10,000 volts or more was impressed across the electrodes, some sort of invisible rays moved from the negative electrode to the positive electrode these rays are called as cathode rays. Cathode rays travel in straight path in absence of electrical and magnetic field . Cathode rays consist of material part and charged particles? Cathode rays produce X-rays and light is emitted when they strike on ZnS screen. Cathode rays penetrate through thin sheets of aluminium and other metals . They affect the photogenic plate and passes heating effect when they strike on metal foil. The raito of charge to mass i.e charge/mass is same for all the cathode rays irrespective of the gas used in the tube. The existence of positively charged particle in an atom was shown be E. Goldstein. He repeated the same discharge tube experiments by using a perforated cathode. It was observed that when a high potential difference was applied between the electrodes, not only cathode rays were produced but also a new type of rays were produced simultaneoulsy from anode moving towards cathode and passes through the holes or canal of the cathode. These termed as canal rays or anode rays. These rays travel in straight lines and consists of positively charged particles. These rays have kinetic energy and produces heating effect also. The e/m ratio of these rays is smaller than that of electrons. Unlike cathode rays, their e/m value is dependent upon the nature of the gas taken in the tube. These rays produced flashes of light on ZnS screen and can pass throughs thin metal foils. They can produce physical and chemical changes and are capable to produce ionisation in gases. Which is not true with respect to cathode rays?

NCERT-ATOMS-Exercise
  1. Choose the correct alternative form the clues given at the end of each...

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  2. Suppose you are given a chance to repeat the alpha-particle scattering...

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  3. What is the shortest wavelength present in the Paschen series of spect...

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  4. A difference of 2.3 eV separates two energy levels in an atom. What is...

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  5. The energy of the electron in the ground state of hydrogen atom is -13...

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  6. A hydrogen atom initially in the ground level absorbs a photon, Which ...

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  7. (a) Using the Bohr's model, calculate the speed of the electron in a h...

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  8. The radius of innermost electron orbit of a hydrogen atom is 5.3xx10^(...

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  9. A 12.5eV electron beam is used to bombard gaseous hydrogen at room tem...

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  10. In accordance with the Bohr's model, find the quantum number that char...

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  11. Answer the following questions, which help you understand the differen...

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  12. The gravitational attraction between electron and proton in a hydrogen...

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  13. Obtain an expression for the frequency of radiations emitted when a hy...

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  14. Classically, an electron can be in any orbit around the nucleus of an ...

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  15. The total energy of an electron in the first excited state of hydrogen...

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  16. If Bohr’s quantization postulate (angular momentum = nh//2pi ) is a ba...

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  17. Obtain the first Bohr radius and the ground state energy of a muonic h...

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