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Atoms and Molec...

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  • Question 1
    1 / -0

    Who suggested that if we go on dividing matter, a stage will come when particles obtained can’t be divided further?

  • Question 2
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    The diameter of an atom of Hydrogen is:

  • Question 3
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    Who was the first to use the symbols for elements?

  • Question 4
    1 / -0

    Phosphorus is :

  • Question 5
    1 / -0

    Argentum is the Latin name of:

  • Question 6
    1 / -0

    How many atoms are present in PO4−3 ion?

  • Question 7
    1 / -0

    What is the name given to the short hand representation of an element?

  • Question 8
    1 / -0

    What is the latin name of sodium?

  • Question 9
    1 / -0

    What is the Latin name of Potassium?

  • Question 10
    1 / -0

    The formula of a compound is Ca3 (PO4)2. What is the valency of Ca in it?

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