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प्रश्न
Name the sub-atomic particles.
उत्तर
Proton, Electron, Neutrons.
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संबंधित प्रश्न
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Define:- Molecule
Write the names of the elements present in the :-
Sulphuric acid
Write the names of `"FeS"` compounds :
Define: Mass number
What does an atom consist of ? Explain.
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
Name the particle or particles you would expect to find in :
The nucleus of an atom
Write the full form of IUPAC.
Name the three subatomic particles present in an atom.
Write the relation between nanometre and metre.
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 ?
Calculate the number of moles in 12.044 × 1025 atoms of phosphorus.
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
The basic unit of matter is ______.
The smaller particles found in the atom is called ______.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
Define the following term with an example.
Compound
Define the following term with an example.
Metalloid
______ is the smallest particle of an element.
The number of atoms present in a molecule is called its ______.
What is the fundamental particle of an element?
The first scientific theory about atoms was given by J J. Thomson.
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
