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If the given schematic diagram represents Thomson's experiment and the corresponding observation, what would be his atomic model?

Important Questions on Structure of The Atom

EASY
Which of the following are deflected by the electric field?
MEDIUM

Match the following :
List -I :
(a) Frequency of distribution of the emitted radiation from a black body
(b) Spin quantum numbers(ms)
(c) Angular Momentum
(d) All orbital have equal energy

List - II :
(i) degeneracy
(ii) temperature dependent
(iii) vector quantity
(iv) mass times velocity times radius 

Codes:

MEDIUM

Identify the sets of quantum numbers which are not possible?

a. n=0, l=0, m1= 0, ms= +12b. n=1, l=0, m1= 0, ms= -12c. n=1, l=1, m1= 0, ms= +12d. n=2, l=1, m1=0, ms=-12

 

EASY
The mass and charge on a neutron is
HARD
Compare Thomson's, Rutherford's and Bohr's models of atom. 
EASY

α-particle scattering experiment was performed by:

HARD
With the help of a neat labelled diagram, describe in brief, the Rutherford’s alpha particle scattering experiment. Write the important conclusions drawn from the experiment.
 
MEDIUM
Define energy level, ground state and excited state.
MEDIUM
Nucleus is positively charged whereas electrons are negatively charged but Niels Bohr proved that electrons never fall into the nucleus. Atom is always stable.
Why do electrons not fall into the nucleus?
EASY

In gold foil experiment most of the α-particles pass through it, it shows

MEDIUM
J J Thomson worked for almost fourteen years to discover one of the fundamental subatomic particles of atom called electron. His hard work was appreciated in 1906 by honouring him with the Nobel Prize.
What should students need to learn by a specific way of working of scientists?
HARD
Illustrate postulates of Neil Bohr to explain model of atom.
EASY
Draw a sketch of hydrogen atom on a chart paper showing the nucleus and electron in the circular orbit.
HARD
The structure of an atom is not yet completely solved and the latest particles discovered are gluons, quarks, antiquarks, and Higgs bosons. Protons and neutrons are made up of various combinations of quarks and gluons. If in the future any new elementary particles are discovered, can you speculate their properties?
MEDIUM
What conclusion is made from the observation that cathode rays rotate a paddle wheel placed in their path?
MEDIUM
The journey from Dalton's model of atom to Thomson's model of atom to Rutherford's model of atom to Bohr's model of atom is a long and strenuous one. Each model has its merits and drawbacks. Even Bohr's model of atom is not the final answer to the structure of atom.
What value can you learn from the ongoing journey of the development of atomic structure from Dalton's model of atom to the present model of atom? Is this value applicable to the improvement of the standard of our life?
 
EASY
Sub-atomic particle having no charge, is