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प्रश्न
Define:
Atomicity
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उत्तर
The number of atoms in a molecule of an element is called its atomicity.
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संबंधित प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Give two examples of Noble gases.
Fill in the blank
A liquid non-metal is _______.
Differentiate between the terms –
elements, compounds & mixtures.
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Select the correct answer from A, B, C, D & E for the statement given below :
A noble gas.
State true of false. If false, give the correct statement.
Two different elements may have similar atoms.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
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 which is required for combustion.
