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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
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उत्तर
Atom
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संबंधित प्रश्न
Define:- Molecule
Write the names of the elements present in the:-
Sodium hydroxide
Define: An Atom:
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Why is it not possible to see an atom even with the most powerful microscope ?
Which of the following statement is correct about the atom of an element ?
Calculate the number of moles in 12.044 × 1025 atoms of phosphorus.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
K: Potassium:: C: ______.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
Define – Atom.
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.
Compound
An element is composed of ______ atoms.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
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?
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
Atoms have a radius of the order ______.
