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प्रश्न
State the type of element for the following:
Antimony
विकल्प
Metal
Non-metal
Metalloid
Noble gas
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उत्तर
Metalloid
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संबंधित प्रश्न
Give two examples of the following :
Solid + Solid mixture
What is the significance of the symbol of an element ? Explain with the help of an example.
Explain the terms 'valency' and 'variable valency'.
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
State the type of element for the following:
Chlorine
Give the formula of the following acid:
Carbonic
State the valency of the following metallic element and write symbol with the valency
Sodium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Tin
write symbol with the variable valency
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Plumbite
What does the symbol '(l)' present in a chemical equation, mean?
