State the atomicity of the following:
Chlorine
[4] Atomic Structure
Chapter: [4] Atomic Structure
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State the atomicity of the following:
Argon
[4] Atomic Structure
Chapter: [4] Atomic Structure
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State the atomicity of the following:
Sulphur
[4] Atomic Structure
Chapter: [4] Atomic Structure
Concept: undefined >> undefined
Complete the table by writing the symbols of the following elements
| Element |
Symbol |
| Aluminum |
Al |
| Nickel |
|
| Bromine |
|
| Helium |
|
| Magnesium |
|
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Mention two uses of the following metals and non-metals
Iron
[6] Metals and Non-metals
Chapter: [6] Metals and Non-metals
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Mention two uses of the following metals and non-metals
Aluminium
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
Mention two uses of the following metals and non-metals
Gold
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
Mention two uses of the following metals and non-metals
Oxygen
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
Mention two uses of the following metals and non-metals
Iodine
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Give reasons
Magnesium is used in fire works.
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Give reasons
Aluminium is used in making aircrafts.
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Give reasons
Graphite is used in the leads of pencils
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Give reasons
Gold is mixed with copper and nickel.
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Give two uses of Germanium
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
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Fill in the blank
_______ is a soft metal.
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
Fill in the blank
A metal that gives dazzling effect to crackers when they explode is ______
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
Write ‘true’ or ‘false’ for the following statement :
Silver is used to make electric cables.
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
Write ‘true’ or ‘false’ for the following statement.
Iodine acts as an antiseptic in the form of a tincture of iodine.
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
A metal with melting point less than 50°C is
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
A metal which is neither ductile nor malleable is
[3] Elements, Compounds and Mixtures (Experimental Techniques)
Chapter: [3] Elements, Compounds and Mixtures (Experimental Techniques)
Concept: undefined >> undefined
