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प्रश्न
Name: a non-metal which is lustrous
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उत्तर
Iodine
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संबंधित प्रश्न
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Define a pure substance. How many types of pure substances do you know?
Give two examples of Noble gases.
Name: Two substances used to make jewellery.
Give reason: Graphite is used to make a lead of the pencils.
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
‘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.
Give an example of two liquids that form heterogeneous mixtures.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
