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प्रश्न
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
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उत्तर
A : Is non-malleable, non-ductile & a poor conductor of electricity Non-metallic element
B : Has lustre, is malleable and ductile & a good conductor of heat Metallic element
C : Is unreactive and inert and present in traces in air Noble gas.
D : Shows properties of both metals and non-metals Metalloid
संबंधित प्रश्न
Give two examples for the following: Metals
Give two examples of Metalloids.
Give two examples of the following.
Non-metals which are solids
Indicate whether the following statement is true or false:
Elements are made up of compounds
Tick (√) the correct alternative from the choice given for the following statement.
All pure substances have
Tick (√) the correct alternative from the choice given for the following statement.
The most abundant elements in the universe are
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Give the name of the radical - OH
Write the names of elements from the following symbol:
Fe
Elements : Combine to form compounds :: Compounds : ______.
