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प्रश्न
Write the names of the elements present in the following compound.
Common salt
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उत्तर
Sodium chloride
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संबंधित प्रश्न
TRUE \ FALSE
Elements combine in definite proportions to form compounds.
Define:- Radicals
Define: Relative atomic mass
Who originated the word ‘atom’ ?
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.
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
Define the following term:
Atom
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.
Which element will gain electron?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
The smallest particle of matter that can exist by itself is ______.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Define the following term with an example.
Compound
Define the following term with an example.
Non-metal
The volume occupied by 4.4 g of CO2 at S.T.P ______
The number of atoms present in a molecule is called its ______.
The graphite refill used is pencil is made of element called ______.
Atoms have a radius of the order ______.
