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प्रश्न
Give two examples of the following.
Inert gases
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उत्तर
Helium, Neon
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संबंधित प्रश्न
Name: Two substances used to make jewellery.
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Write the names of elements from the following symbol:
Ir
Explain the difference between Metals and non-metals.
Select the correct answer to the statement given below:
A metalloid
‘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.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
Classify the substances given in Fig. 2.2 into elements and compounds
What is the Latin name of Sodium?
