EASY
Earn 100

Bohr's atomic model does not explain the stability of an atom.

73.44% studentsanswered this correctly

Important Questions on Atomic Structure

MEDIUM
Science>Chemistry>Atomic Structure>Introduction to an Atom
The sum of the total number of neutrons present in protium, deuterium and tritium is
HARD
Science>Chemistry>Atomic Structure>Introduction to an Atom
What is Thomson's model of atom ?
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
What is the average age of a chemistry noble laureate?
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Science>Chemistry>Atomic Structure>Introduction to an Atom
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>Introduction to an Atom
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?
MEDIUM
Science>Chemistry>Atomic Structure>Introduction to an Atom
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.
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
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?
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
What is the ratio of mass of an electron to the mass of a proton
HARD
Science>Chemistry>Atomic Structure>Introduction to an Atom
Which one is a set of isoelectronic species ?
MEDIUM
Science>Chemistry>Atomic Structure>Introduction to an Atom
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>Introduction to an Atom
Which of the following statements represent an incorrect limitation of Thomson's Atomic model?
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Science>Chemistry>Atomic Structure>Introduction to an Atom
Discuss the experimental evidence which led Rutherford to postulate a nuclear model.
MEDIUM
Science>Chemistry>Atomic Structure>Introduction to an Atom
Which of the following properties of the atom could be explained correctly by Thomson Model of the atom?  
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
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?
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the atom are:
HARD
Science>Chemistry>Atomic Structure>Introduction to an Atom
Thomson's atomic model fails to explain the results of scattering experiments, carried out by _____.
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
Remaining part of atom except outer orbit is called:-
 
EASY
Science>Chemistry>Atomic Structure>Introduction to an Atom
Cotyledons are also called-
MEDIUM
Science>Chemistry>Atomic Structure>Introduction to an Atom

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}

MEDIUM
Science>Chemistry>Atomic Structure>Introduction to an Atom
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).