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Question 7
Question: Who discovered the nucleus within an atom? And how? Answer: Ernest Rutherford discovered the nucleus within an atom in his alpha-ray scattering experiment. The arrangement of the alpha-particle scattering experiment is as follows: Rutherford produced a n..
Question: Who discovered the nucleus within an atom? And how? Answer: Ernest Rutherford discovered the nucleus within an atom in his alpha-ray scattering experiment. The arrangement of the alpha-particle scattering experiment is as follows: Rutherford produced a n..Bonding in Metallic Solids
. The atom of metallic elements contain only 1 to 3 valence electrons, therefore these atoms cannot form covalent bonds, with noble gas configurations as they will remain incomplete. Covalent compounds are bad conductors of electricity and are generally liquids; properties oppos..
Degrees of Freedom and Molar Specific Heats
= 3/2R agrees with experiment for monatomic gases but fails for diatomic and polyatomic gases. Let us try to explain the discrepancy by considering the possibility that molecules with more than one atom can store internal energy in forms other than translational motion. The above figure s..
= 3/2R agrees with experiment for monatomic gases but fails for diatomic and polyatomic gases. Let us try to explain the discrepancy by considering the possibility that molecules with more than one atom can store internal energy in forms other than translational motion. The above figure s..The staggered conformation
. This repulsion is called non bonded interactions and it raises the energy and makes the eclipsed form unstable. In the case of staggered form, the atoms or groups are as far away from each other as possible and hence there is no repulsion. Hence the energy is less and this conformation ..
Discovery of Neutrons
Although Rutherford's model was enormously successful at explaining the scattering of alpha particles, there was a problem when the experimental data were used to calculate the mass of the nucleus. From the results of the scattering experiments, it was possible to calculate the charge on..
Photosynthesis Summary
>The light reaction, in which light energy is captured by chlorophyll and converted to the chemical energy of ATP and NADPH. The dark reaction, in which carbon atoms are reduced and carbohydrates formed. In the currently accepted model of the light reactions in photosynthesis, l..
Discovery of Neutrons
Search for the missing particle - Although Rutherford's model was enormously successful at explaining the scattering of alpha particles, there was a problem when the experimental data were used to calculate the mass of the nucleus. From the results of the scattering experiments, it was po..
Enzyme Catalysis
) Enzymes bind the substrate by multiple weak interactions. These weak interactions are electrostatic bonds, hydrogen bonds, van der Waals' forces and hydrophobic interactions. van der Waals' forces become significant in binding only when many substrate species can come simultaneously close to many..
Conformations of Cyclohexane
Cyclohexane - In 1890, Sachse said that two puckered (non planar) models of cyclohexane are possible where the valence bonds of all the carbons were at tetrahedral angle to each other. They were found to be free from strain. One is the rigid chair form and the other the flexible boat form..
Cyclohexane - In 1890, Sachse said that two puckered (non planar) models of cyclohexane are possible where the valence bonds of all the carbons were at tetrahedral angle to each other. They were found to be free from strain. One is the rigid chair form and the other the flexible boat form..Polarisation
. The arrows indicate that the vibration of the string occurs in all directions. On passing through A, only the vertical vibration of the string appears and these continue to go through B and come out finally. When the slit of board B is placed perpendicular to A, no vibrations appear to come out o..
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