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प्रश्न
Name the elements with the following symbols.
- Na
- W
- Ba
- Al
- U
उत्तर
- Na – Sodium
- W – Tungsten
- Ba – Barium
- Al – Aluminium
- U – Uranium.
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संबंधित प्रश्न
Give two symbols which have been derived from the "English names" of the elements.
An element which can exhibit valencies of 2, 4 and 6 can be :
What do the following symbol stand for?
2H
Give a reason why elements are tabulated in a table called 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
Select the correct answer from the choice given below.
The type of element-phosphorus
State the type of element for the following:
Lead
State the type of element for the following:
Platinum
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).
Hydroxide
Give the qualitative and quantitative meaning of the term ‘symbol’.
