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प्रश्न
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
पर्याय
electron
proton
neturon
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उत्तर
proton
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संबंधित प्रश्न
Write true or false
All pure substances have characteristic melting and boiling points.
What is the difference between a pure substance and a mixture ?
Define: Compounds
Why is it necessary to separate the constituents of a mixture.
Give two examples of Metals.
Give two examples of the following.
Non-metals which are solids
Define: Atom
Name: Three different forms of carbon
Name A substance used as an insulator.
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Fill in the blank
A metal which is a liquid at room temperature is _______.
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Give the name of the radical - SO4
Write the names of elements from the following symbol:
Cu
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
Name the constituents of water.
Give an account of elements known to us.
