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प्रश्न
Define: Elements-
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उत्तर
Elements : An element is the basic form of matter that cannot be broken down into simpler substances by chemical reactions.
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संबंधित प्रश्न
Give the symbols and valencies of following radicals:
(a) Hydroxide (b) Chloride
(c) Carbonate (d) ammonium
(e) Nitrate
Define atomic mass unit. What is its symbol ?
Give the symbol of the following element:
Radon
State the type of element for the following:
Carbon
State the type of element for the following:
Sodium
Write the radical of the following valency:
Sulphite
Write the chemical formula of the following:
Sodium bromide
Give the formula of the following gas:
Carbon monoxide
State the valency of the following metallic element and write symbol with the valency
Magnesium
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
