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प्रश्न
Give two examples for each of ionic and covalent bond.
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उत्तर
Example of ionic bonds— Sodium chloride and calcium oxide.
Example of covalent bond— Water, carbon dioxide.
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संबंधित प्रश्न
WRITE SHORT ANSWER
Define an ionic compound.
WRITE SHORT ANSWER
Name three inert gases.
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Write the names of the elements present in the:-
Sodium hydroxide
Give the charge and the mass of an electron, proton and neutron present in 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.
Name the unit in which the radius of an atom is usually expressed.
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
A compound containing one atom of carbon and two atoms of oxygen is ______.
The basic unit of matter is ______.
The smaller particles found in the atom is called ______.
Define the following term with an example.
Metal
Define the following term with an example.
Metalloid
Which of the following has maximum number of atoms?
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 ______.
