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प्रश्न
State the valency of the following metallic element and write symbol with the valency
Sodium
उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Sodium | \[\ce{Na}\] | \[\ce{Na^1+}\] |
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संबंधित प्रश्न
What is the significance of the symbol of an element ? Explain with the help of an example.
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
State the type of element for the following:
Iodine
Give the symbol of the following element:
Nitrate
Give the symbol of the following element:
Sulphite
Write the radical of the following valency:
Nitrate
Give the formula of the following gas:
Hydrogen 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).
Sulphite
Name the elements with the following symbols.
- Na
- W
- Ba
- Al
- U
