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प्रश्न
Give a reason for Inert gases do not form ions.
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उत्तर
Inert gases do not produce ions because their outermost shell is completely filled, resulting in a stable electronic state. As a result, atoms cannot absorb or lose electrons in order to create ions.
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संबंधित प्रश्न
Identify the term/substance in the following:
The electrons present in the outermost shell of an atom.
The following table shows the test a student performed on four different aqueous solutions which are X, Y, Z and W. Based on the observations provided, identify the cation present:
| Chemical test | Observation | Conclusion |
| To solution X, ammonium hydroxide is added in minimum quantity first and then in excess |
A dirty white precipitate is formed which dissolves in excess to form a clear solution |
(1) |
| To solution Y ammonium hydroxide is added in the minimum quantity first and then in excess |
A pale blue precipitate is formed which dissolves in excess to form a clear inky blue solution. |
(2) |
| To solution W a small quantity of sodium hydroxide solution is added and then in excess. |
A white precipitate is formed which remains insoluble. |
(3) |
| To a salt Z calcium hydroxide the solution is added and then heated. |
A pungent smelling gas turning moist red litmus paper blue is obtained. |
(4) |
Choose the correct answer from the options given below:
A compound X consists of only molecules. Hence, X will have
A. A crystalline hard structure
B. A low melting point and low boiling point
C. An ionic bond
D. A strong force of attraction between its molecules
Why do atoms combine?
Give the conditions for coordinate bond formation.
Fill in the blank
Coordinate bond is also called __________bond.
Choose the correct answer from the options given below
Which one is coordinate molecule?
What is a lone pair of electrons?
What is the term defined below?
A bond formed by a shared pair of electrons with both electrons coming from the same atom.
By drawing an electron dot diagram, show the lone pair effect leading to the formation of the ammonium ion from ammonia gas and hydrogen ion.
