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प्रश्न
How did Neils Bohr visualise the atom ?
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उत्तर
Niels Bohr explained that atom is like a solar system with an empty space with a minute central nucleus, like Sun and electrons life planets revolve around it.
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संबंधित प्रश्न
Write the names of the elements present in the following compound.
Common salt
Write the names of the elements present in the:-
Acetic acid
What are orbits or shells ?
Name the particle or particles you would expect to find in :
The orbit of an atom
Define: An Atom:
What are the building blocks of matter ?
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
What is an atom ? How do atoms usually exist ?
Define the following term:
Atom
Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
The smaller particles found in the atom is called ______.
Draw the structure of an atom and explain the position of the sub-atomic particles.
1 mole of Gold and Silver contain same number of atoms.
Give the salient features of “Modern atomic theory”.
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
Lead is also known as plumbum.
