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प्रश्न
Give the symbol of the following element:
Copper
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उत्तर
| Name | Symbol |
| Copper | Cu |
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संबंधित प्रश्न
Define: Compounds
What do you understand by :
Noble gases
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Match the formulas of the following gases with their correct names :
Gases - (a) H2 (b) N2 (c) O2 (d) Cl2 (e) HCI (f) NH3 (g) CO (h) CO2 (i) SO2 (j) NO (k) NO2.
Names:
(1) Ammonia (2) Nitrogen Dioxide (3) Oxygen (4) Hydrogen (5) Nitrogen (6) Chlorine (7) Carbon Monoxide (8) Sulphur Dioxide (9) Nitrogen Monoxide (10) Carbon Dioxide (11) Hydrogen Chloride
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
Give the symbol of the following element:
Chlorine [chloride]
Write the radical of the following valency:
Iodine
Give the formula of the following gas:
Carbon monoxide
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).
Dichromate
The pictorial symbol for water given by the alchemists was
