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प्रश्न
State the valency of the following metallic element and write symbol with the valency
Sodium
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उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Sodium | \[\ce{Na}\] | \[\ce{Na^1+}\] |
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संबंधित प्रश्न
Define: Compounds
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)
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Na1+ Cl1-
Write the radical of the following valency:
Aluminium
Give the formula of the following gas:
Nitric oxide
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).
Chloride
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
What does the symbol '→' present in a chemical equation, mean?
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
What is the significance of the symbol of an element?
