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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
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Oxide
State the type of element for the following:
Boron
Write the radical of the following valency:
Hydroxide
Write the chemical formula of the following:
aluminium chloride
Give the formula of the following acid:
Nitric
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
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).
Bisulphate
Name three metals whose symbols are derived: from their Latin names.
What does the symbol '(g)' present in a chemical equation, mean?
