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प्रश्न
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).
Aluminate
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उत्तर
| Name | Symbol | Ion | Valency |
| Aluminate | \[\ce{AlO2}\] | \[\ce{[AlO2]^{1-}}\] | −1 |
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संबंधित प्रश्न
Which particular atom of the above element is used for this purpose ?
Give two symbols which have been derived from the " Latin names" of the elements.
What do the following symbol stand for?
H
Match the noble gases – with their correct symbols:
| Noble gases | Symbols |
| (a) Helium | (1) Ar |
| (b) Neon | (2) Xe |
| (c) Argon | (3) Rn |
| (d) Krypton | (4) He |
| (e) Xenon | (5) Kr |
| (f) Radon | (6) Ne |
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:
Radon
State the type of element for the following:
Calcium
Write the radical of the following valency:
Iodine
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).
Bromide
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
