Recall all the atomic models you described in task 1. think about the results each model would predict

Recall all the atomic models you described in task 1. think about the results each model would predict for the experiment with hydrogen gas. which models of the atom does the experimental evidence support? explain why these models are compatible with the experimental results.

the models in task 1 were dalton's, thomson's, ruthordord's, and bohr's.
here is the description of the experiment with hydrogen gas.

a gas discharge tube consists of a gas-filled tube fitted with a metal electrode at each end. in this case, the gas used is hydrogen. an electric current is passed through the tube. the electrons in the hydrogen absorb energy from the electric current and get excited to a higher energy level. as the electrons return to their original energy state, called the ground state, they emit light of a specific color. the color of the light depends on the amount of energy that it carries. this energy is the difference in energy of the excited state and the ground state. particles of different gases emit light carrying different amounts of energy and, as a result, different colors. hydrogen emits four visible colors of light.

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  1. C
    These are all isotopes of Hydrogen and they differ from one another because of their different number of neutrons.

  2. The correct answer is option A. "More energy is produced per reaction in a fusion reaction than in a fuel cell".

    Explanation:

    It is estimated that a fusion reaction four million times more energetic than traditional chemical reactions such as burning of coal, oil or gas. Fusion reactions produce even more energy than other types of atomic approaches, such as the ones used in hydrogen fuel cells. Hydrogen fuel cells are based on the energy produced by hydrogen atoms moving from an anode to a cathode, an energetic approach but not as energetic as the atomic fusion.

  3. The ans is C. Hydrogen, deuterium amd tritium are all isotopes of hydrogen. Isotopes only differ in their number of neutrons. Hence, the ans is c

  4. Covalent bond is a primary chemical bond formed by the sharing of electron pairs

    Hydrogen bond is a weak electrostatic attraction between the hydrogen and an electronegative atom due to their difference in electronegativity.

  5. Oxidative phosphorylation relies on the hydrogen ion concentration gradient generated and maintained by the electron transport chain.

    Hydrogen ions are actively transported out of the mitochondrial matrix.

    Hydrogen ion concentration is higher in the intermembrane space than in the mitochondrial matrix.

  6. C) Isotopes differ only in their number of neutrons - so they contain 0, 1, and 2 neutrons, respectively.

    Explanation: Isotopes are elements which have same atomic number but different mass number. Hydrogen has three isotopes named as hydrogen [tex]_1^1\textrm{H}[/tex] , deuterium [tex]_1^2\textrm{H}[/tex] , and tritium [tex]_1^3\textrm{H}[/tex].

    Atomic number= number of protons = number of electrons (for neutral atom)

    Mass number = number of protons + number of neutrons

    Thus Number of neutrons = Mass Number - Atomic number

    Thus number of neutrons in hydrogen with atomic number 1 and mass number 1 = 1 - 1 = 0

    Thus number of neutrons in deuterium with atomic number 1 and mass number 2 = 2 - 1 = 1

    Thus number of neutrons in tritium with atomic number 1 and mass number 3 = 3 - 1 = 2

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