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प्रश्न
Define:- Atom
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उत्तर
Atom: An atom is the smallest indivisible unit of an
OR
Atom is the smallest unit of matter.
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संबंधित प्रश्न
Write the names of the elements present in the:-
Glucose
Write the names of the elements present in the:-
Sodium hydroxide
Write the names of the elements present in the:-
Acetic acid
Write the names of `"Ca"("NO"_3)_2` compounds :
Write the names of `"Na"_3"PO"_4` compounds :
Name the particle or particles you would expect to find in :
The nucleus of an atom
Fill in the blank
If an atom gains an electron, it is called an _______
Name the three subatomic particles present in an atom.
How is the size of an atom indicated ?
Which of the following statement is correct about the atom of an element ?
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
What will be the charge present of the molecule XY after chemical combination?
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
Define the following term with an example.
Element
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.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
The number of atoms present in a molecule is called its ______.
The first scientific theory about atoms was given by J J. Thomson.
