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An atom consists of a positively charged sphere with are embedded in it.

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Important Questions on Atomic Structure

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Science>Chemistry>Atomic Structure>Thomson's Atom Model
The sum of the total number of neutrons present in protium, deuterium and tritium is
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
What is Thomson's model of atom ?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
What is the average age of a chemistry noble laureate?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
The mass to charge ratio (m/e) for a cation is 1.5×10-8 kg C-1. What is the mass of atom?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Are the models and theories that scientists create accurate descriptions of the natural world, or are they primarily useful interpretations for the prediction, explanation, and control of the natural world?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Atomic radius is of the order of 10-8 cm and nucleus radius is of the order of 10-13 cm. Calculate what fraction of atom is occupied by nucleus.
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
The Nobel prize in chemistry is awarded annually by the Royal Swedish Academy of sciences, Stockholm, Sweden. The Nobel Prize website gives information about the various Nobel Prize winners in chemistry and other fields of science and medicine. Chemistry was deemed the most important science for the work of Alfred Nobel. When will this year's Nobel prize in chemistry be announced?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
What is the ratio of mass of an electron to the mass of a proton
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Which one is a set of isoelectronic species ?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Be47 captures a K-electron into its nucleus. What will be the sum of mass number and atomic number of the nuclide formed?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Which of the following statements represent an incorrect limitation of Thomson's Atomic model?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Discuss the experimental evidence which led Rutherford to postulate a nuclear model.
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Which of the following properties of the atom could be explained correctly by Thomson Model of the atom?  
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Dalton was colour-blind and saw himself as being dressed in grey clothes. His only known pastime was bowling. Could the wooden balls on the bowling green have influenced his theories of the atom? How important is the work -life balance for the scientific practitioner or indeed for society as a whole?
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the atom are:
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Thomson's atomic model fails to explain the results of scattering experiments, carried out by _____.
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Remaining part of atom except outer orbit is called:-
 
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Science>Chemistry>Atomic Structure>Thomson's Atom Model
Cotyledons are also called-
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Science>Chemistry>Atomic Structure>Thomson's Atom Model

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

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Science>Chemistry>Atomic Structure>Thomson's Atom Model
In which one of the following pairs, the two species are both isoelectronic and isotopic ? (Atomic numbers : Ca= 20, Ar= 18, K = 19, Mg= 12, Fe= 26, Na= 11).