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प्रश्न
Name the particle or particles you would expect to find in :
The nucleus of an atom
उत्तर
The nucleus of an atom : protons and neutrons
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संबंधित प्रश्न
If bromine atom is available in the form of, say, two isotopes `""_35^79Br (49.7%)" and """_35^81Br (50.3%)`, calculate the average atomic mass of bromine atom.
TRUE \ FALSE
Cathode rays are a stream of fast moving particles that travel in random directions.
WRITE SHORT ANSWER
What is radioactivity?
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Write the names of the elements present in the:-
Acetic acid
Define: Chemical bond
What are orbits or shells ?
What does the word ‘atom’ mean?
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 |
What is the contribution of the following in atomic structure?
Maharshi Kanada
In what respects do the three isotopes of hydrogen differ? Give their structures.
The smallest particle of matter that can exist by itself is ______.
The basic unit of matter is ______.
Define the following term with an example.
Metalloid
In all atoms of an element
In the nucleus of `""_20"Ca"^40`, there are ______
A change in the physical state can be brought about
