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प्रश्न
Name the elements with the following symbols.
- Na
- W
- Ba
- Al
- U
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उत्तर
- Na – Sodium
- W – Tungsten
- Ba – Barium
- Al – Aluminium
- U – Uranium.
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संबंधित प्रश्न
The formula of the sulphate of an element X is X2(SO4)3. The formula of nitride of element X will be :
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
State the type of element for the following:
Aluminium
Write the radical of the following valency:
Sulphur [Sulphide]
Give the formula of the following gas:
Nitric oxide
State the valency of the following metallic element and write symbol with the valency
Chromium
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).
Iodide
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
The chemical symbol for sodium is
What is the significance of the symbol of an element?
