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Structure of At...

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  • Question 1
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     Maximum number of electrons held in the d orbitals is : 

  • Question 2
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    Statement 1: Atoms of different elements can have the same mass number.
    Statement 2: The atoms of each element have a characteristic number of protons in the nucleus.

  • Question 3
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    Which of the following assumptions made by Neils Bohr regarding the hydrogen atom was NOT new and "radical"?

  • Question 4
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    Who postulated that electrons revolve in orbits around the nucleus?

  • Question 5
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    According to J.J Thomson's atomic model, negative charges are embedded in:

  • Question 6
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    Atoms of different elements having the same mass number are known as :

  • Question 7
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    An atom with atomic number $$20$$ is most likely to combine chemically with the atom whose atomic number is___________.

  • Question 8
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    The value of first Bohr's radius of a hydrogen atom is ________.

  • Question 9
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    The change in velocity when electron jumps from the first orbit to the second orbit is__________.

  • Question 10
    1 / -0

    What is the percentage composition of the elements in ammonia? 

    $$(N = 14, H=1)$$

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