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प्रश्न
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
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उत्तर
Dalton used symbol [⚪] for oxygen and [☉] for hydrogen.
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संबंधित प्रश्न
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
Give the symbol of the following element:
Arsenic
State the type of element for the following:
Sodium
Write the radical of the following valency:
Sulphite
Define the term ‘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
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).
Sulphite
Which of the following would weigh the highest?
In the same way in chemistry, each element is denoted by a ______.
