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प्रश्न
Define: Formula
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उत्तर
Formula: Formula is a short way of representing the molecule of an element or a compound
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संबंधित प्रश्न
Fill in the blan
An ________ is a homogeneous mixture of two or more metals.
Name: a non-metal which is lustrous
Answer the following question:
Why are copper and aluminium used to make electric wires?
Find the atomicity of the Following molecule:
Aluminium Suiphide
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.
Sulphur and carbon are
Classify substances into pure and impure substances in the form of a chart or tabulation.
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 ___________
Write the names of elements from the following symbol:
Pt
Select the correct answer from A, B, C, D & E for the statement given below :
A noble gas.
