Advertisements
Advertisements
प्रश्न
What do you understand by :
Noble gases
Advertisements
उत्तर
Noble gases : Noble gases are those which do not react chemically with other elements or compounds e.g. helium, neon, etc.
APPEARS IN
संबंधित प्रश्न
Give the symbol and the number of atoms of the following elements present in zinc chloride.
Give the symbol of the following element:
Sulphur [sulphide]
Give the symbol of the following element:
Radon
Give the symbol of the following element:
Bromine [bromide]
State the type of element for the following:
Mercury
Write the chemical formula of the following:
zinc oxide
State the valency of the following metallic element and write symbol with the valency
Sodium
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).
Hydroxide
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).
Sulphate
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
