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प्रश्न
State the type of element for the following:
Lead
पर्याय
Metal
Non-metal
Metalloid
Noble gas
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उत्तर
Metal
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संबंधित प्रश्न
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:
Calcium
Write the radical of the following valency:
Zinc
Write the chemical formula of the following:
Sodium bromide
Give the formula of the following gas:
Nitrogen dioxide
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).
Carbonate
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
The symbol of tungsten is _______.
In the same way in chemistry, each element is denoted by a ______.
