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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 anion of an element has ______.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
Fill in the blank:
Symbol represents _____ atom(s) of an element.
Select the correct answer from the choice given below.
The type of element-phosphorus
State what is meant by the term ‘activity series of metals’.
Give the symbol of the following element:
Magnesium
Write the chemical formula of the following:
magnesium sulphate
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).
Sulphite
What does the symbol '(g)' present in a chemical equation, mean?
Which letter is never used in any element symbol?
