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Almost the entire mass of an atom is con...

Almost the entire mass of an atom is concentrated in the _______.

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Nucleus
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In the HCl molecule, the separation between the nuclei of the two atoms is about 1.27A. Find the approximate location of the centre of mass of the molecule, given that the chlorine atom is about 35.5 times as massive as a hydrogen atom and nearly all the mass of an atom is concentrated in its nucleus.

In the HCl molecule, the separation between the nuclei of the two atoms is about 1.27 Å (1 Å = 10^(-10) m) . Find the approximate location of the CM of the molecule, given that a chlorine atom is about 35.5 times as massive as a hydrogen atom and nearly all the mass of an atom is concentrated in its nucleus.

Knowledge Check

  • The mass of an atom of carbon is :

    A
    1g
    B
    1/12 g
    C
    `1.99 xx 10^(-23) g `
    D
    `1.99 xx 10^23 g`

  • In an atom, the mass number of an atom is equal to the number of ____.

    A
    nucleons
    B
    protons
    C
    electrons
    D
    Neutrons

  • If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of the one mole of a substance will

    A
    decrease twice
    B
    increase two fold
    C
    remain unchanged
    D
    be a function of the molecular mass of substance.

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    A solution contains 50 g of comon salt in 200 g of water. Calculate the concentration in terms of mass by mass percentage of the solution?

    If we consider that 1/6 in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

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