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प्रश्न
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
उत्तर
संबंधित प्रश्न
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Give reason: Graphite is used to make a lead of the pencils.
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Select the correct answer from the choice given below.
The element which is malleable
Write the names of elements from the following symbol:
Ti
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
What are elements? What are they made of?
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
