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प्रश्न
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
पर्याय
Molecule
Orbits
Atom
Valency
Radical
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उत्तर
Orbit
APPEARS IN
संबंधित प्रश्न
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 following compound.
Common salt
Name two particles found inside the nucleus. What are they collectively called ?
Name the particles which revolve around the nucleus.
Give two examples for each of ionic and covalent bond.
Name the particle or particles you would expect to find in :
The orbit of an atom
Name the unit in which the radius of an atom is usually expressed.
What is an atom ? How do atoms usually exist ?
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
Draw the electron dot structure of this compound.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –
- ammonium
- bisulphate
- carbonate
state the group of atoms present in each radical.
The smallest particle of matter that can exist by itself is ______.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
Define the following term with an example.
Metal
Which of the following has maximum number of atoms?
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
The first scientific theory about atoms was given by J J. Thomson.
