Advertisements
Advertisements
प्रश्न
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
विकल्प
Molecule
Orbits
Atom
Valency
Radical
Advertisements
उत्तर
Atom
APPEARS IN
संबंधित प्रश्न
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 ?
ANSWER IN DETAIL
How are isobars different from isotopes ?
Write the names of the elements present in the:-
Sodium hydroxide
Write the names of `"FeS"` compounds :
What is the maximum number of electrons present in:
1. first shell
2. second shell
3. third shell and
4. fourth shell
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
Who originated the word ‘atom’ ?
What does the word ‘atom’ mean?
State Dalton’s atomic theory.
Name the particle or particles you would expect to find in :
The orbit of an atom
Why is it not possible to see an atom even with the most powerful microscope ?
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
State two observations which show that atom is not indivisible.
Draw the structure of an atom and explain the position of the sub-atomic particles.
In all atoms of an element
In the nucleus of `""_20"Ca"^40`, there are ______
Give the salient features of “Modern atomic theory”.
