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प्रश्न
Select the correct answer from the choice given below.
A group of atoms of elements
विकल्प
ion
radical
combining power
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उत्तर
radical
संबंधित प्रश्न
Is food that we eat a mixture ?
Give two applications of chromatography.
Give two examples of the following.
Non-metals which are solids
Answer the following question:
Give the advantages of using symbols instead of names of elements or compounds.
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 ___________
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
Elements : Combine to form compounds :: Compounds : ______.
Why are utensils made up of aluminium and brass?
Classify the substances given in Fig. 2.2 into elements and compounds
Name the element which is used for making computer chips.
