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प्रश्न
State true of false. If false, give the correct statement.
Two different elements may have similar atoms.
पर्याय
True
False
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उत्तर
Two different elements may have similar atoms- True
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संबंधित प्रश्न
Name a soft metal.
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
Is food that we eat a mixture ?
Name: a Liquid Non-metal
Give two examples of Metalloids.
Give reason: Graphite is used to make a lead of the pencils.
Find the atomicity of the Following molecule:
Calcium Chloride
Find the atomicity of the Following molecule:
Aluminium Suiphide
Fill in the blank
A liquid non-metal is _______.
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
