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Structure of At...

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  • Question 1
    1 / -0

    How is the number of rings in the Bohr's model of any element determined?

  • Question 2
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    Which element has a mass number of 20 and contains 11 neutrons?

  • Question 3
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    Elements are characterized by the ______ of their atoms.

  • Question 4
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    The ratio between neutrons in C and Si with respect to atomic masses 12 and 28 is _________.

  • Question 5
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    The atomic number of an element is $$21$$ and the number of neutrons in its atom is $$18$$. Find the mass number of the element?

  • Question 6
    1 / -0

    Atomic mass of oxygen is ________.

  • Question 7
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    The net charge inside an atom is zero because :

  • Question 8
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    In Thomson's model, _________ are embedded in a positively charged 'soup'.

  • Question 9
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    Which of the following disproved Thomson's model?

  • Question 10
    1 / -0

    According to Thomson, an atom consists of:

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