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What is atomic number ?...

What is atomic number ?

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The number of positive charges ( proptons ) in the atom of element is the atomic number of element .
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Knowledge Check

  • What is the atomic number of the element with symbol Uus?

    A
    117
    B
    116
    C
    115
    D
    114

  • What is the atomic number of noble gas that reacts with F2

    A
    10
    B
    12
    C
    18
    D
    54

  • What is the atomic number of noble gas that reacts with F_2

    A
    10
    B
    2
    C
    18
    D
    54

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    In an atom the number electrons in M-shell is equal to the number of electrons in the K and L Shell. Answer the following questions. What is the atomic number of element?

    What is the atomic number of the element, having maximum number of unpaired 2p electrons ? To which group does it belong?

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    What is the atomic number of the element, having maximum number of unpaired 2p electrons? To which group does it belong?

    From the above table, what is the atomic number fo hydrogen?

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