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प्रश्न
Why are Noble gases inert in nature?
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उत्तर
Noble gases are inert in nature due to the completely filled subshells and thus have stable electronic structures which is very difficult to change. The elements Helium, Neon, Argon, Krypton, Xenon and Radon of group 18 in the periodic table are Noble gases.
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संबंधित प्रश्न
Mention the basic tendency of an atom which makes it to combine with other atoms.
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Democritus
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An element having valency 'zero'
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
How many atoms of each kind are present in the following molecule:
carbon tetrachloride
