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प्रश्न
Write the symbols of helium, silver, krypton, antimony, barium.
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उत्तर
| Element | Symbol |
| Helium | He |
| Silver | Ag |
| Krypton | Kr |
| Antimony | Sb |
| Barium | Ba |
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संबंधित प्रश्न
Define: Elements-
What is meant by atomicity? Name the diatomic element.
State what a chemical formula denotes.
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
State the type of element for the following:
Antimony
State the type of element for the following:
Aluminium
Write the radical of the following valency:
Zinc
State the valency of the following metallic element and write symbol with the valency
Calcium
State the valency of the following metallic element and write symbol with the valency
Chromium
Mass of one atom of oxygen is
