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प्रश्न
What do you understand by :
Noble gases
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उत्तर
Noble gases : Noble gases are those which do not react chemically with other elements or compounds e.g. helium, neon, etc.
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संबंधित प्रश्न
The atomic number of an element X is 13. What will be the number of electrons in its ion X3+ ?
Explain the terms 'valency' and 'variable valency'.
Give the symbol of the following element:
Carbon
Write the radical of the following valency:
Phosphate
Write the chemical formula of the following:
calcium carbonate
Select the correct answer to the statement given below:
An element present in the earth’s crust, atmosphere and the human body.
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Dichromate
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Zincate
Which of the following would weigh the highest?
The name copper was taken from ______.
