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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
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
Give the symbol of the following element:
Silicon
State the type of element for the following:
Neon
State the type of element for the following:
Sulphur
State the most reactive and the least reactive metal from the following – Zn, Ag, Na, Fe, Cu, Pb.
Write the chemical formula of the following:
aluminium chloride
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).
Permanganate
Name three metals whose symbols are derived from the first letter of the name of the element.
Name three metals whose symbols are derived: from their Latin names.
What is the expansion of IUPAC.
