Advertisements
Advertisements
प्रश्न
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
Advertisements
उत्तर
Molecule: Atoms of the same element or different elements combine to form a molecule. It is the smallest particle of a substance – which can normally exist independently and can retain, the physical and chemical properties of the substance.
Examples
Monoatomic molecule: Metals – Na, Mg, etc.
Diatomic molecule: H2, O2, N2.
Polyatomic molecule: O3, P4.
APPEARS IN
संबंधित प्रश्न
Name the technique that you use if only the solid component of a solution is required.
Differentiate between:
Homogenous and heterogenous substances
Give one use of the following substance:
Iron
Differentiate between the terms –
elements, compounds & mixtures.
Write the names of elements from the following symbol:
Xe
State five different characteristics of compounds.
State true of false. If false, give the correct statement.
Two different elements may have similar atoms.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal other than carbon that shows allotropy.
Name the element which is used for making computer chips.
Name the element which is used in toothpaste to strengthen our teeth.
