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प्रश्न
Why are Noble gases inert in nature?
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
Complete the following:
| Sodium | Phosphorus | Carbon | |
| Formula of chloride | |||
| Nature of bonding | |||
| Physical state of chloride |
In term of electron transfer, define Oxidation
Explain the following briefly:
Helium does not form He2 molecule
Element X is a metal with a valency 2. Element Y is a non metal with a valency 3.
(a) Write equations to show how X and Y form ions.
(b) If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2, 8, 1 |
2, 8, 7 |
2, 5 |
1 |
Answer the following question based on the table above:
What is the formula of the compound formed between W and X.
How many electrons are required or released by each atom in calcium oxide to attain the nearest noble gas configuration?
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
Draw orbit structure diagram of sodium chloride (NaCl).
Identify the following reaction as either oxidation or reduction:
K - e- → K+
The valency of noble gases is ______.
