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Name the element whose atom contains onl...

Name the element whose atom contains only one proton and one electrons.

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Hydrogen
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Calculate the atomic number and the mass number of the element whose nucleus contains 11 protons and 12 neutrons.

An atom contains the same number of protons and electrons.

Knowledge Check

  • The mass of one mole of proton and electron is

    A
    `6.023xx10^(23)" gm and 0.55 mg"`
    B
    `"1.008 gm and 0.55 mg"`
    C
    `9.1xx10^(-28)"kg and 0.55 gm"`
    D
    `"2 g and "9.1xx10^(-28)gm`

  • The charge on the atom containing 8 protons, 9 neutrons and 9 electrons is

    A
    -1
    B
    +1
    C
    zero
    D
    -2

  • Assertion : In atomic form hydrogen consists of one proton and one electron. Reason : In elemental form hydrogen exists as a diatomic molecule and is called dihydrogen.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

    • Similar Questions

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    The atoms of all the elements contains electrons, protons and neutrons. True/False explain.

    What name is given to those atoms which contain the same numer of protons and electrons but different number of neutrons ?

    Is it possible for the atom of an element to have one electron, one proton and no neutron. If so, name the element.

    Which among the following contains only one unpaired electron?

    Name the elements whose atomic weight was corrected by Mendeleev.

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