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प्रश्न
State the valency of the following metallic element and write symbol with the valency
Zinc
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उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Zinc | \[\ce{Zn}\] | \[\ce{Zn^2+}\] |
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संबंधित प्रश्न
Give two examples of the following:
Solid + Liquid mixture
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’
Give the names and symbols of the first twenty elements of the periodic table.
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
Give the symbol of the following element:
Radon
State the type of element for the following:
Boron
Write the radical of the following valency:
Oxygen
Write the chemical formula of the following:
zinc 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
Give the qualitative and quantitative meaning of the term ‘symbol’.
