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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
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
Give two examples of the following :
Solid + Solid mixture
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Na1+ Cl1-
State which element exists in the highest percentage in earth’s crust.
Write the radical of the following valency:
Oxygen
Give the formula of the following gas:
Nitrogen dioxide
Give the formula of the following gas:
Nitrogen
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).
Nitrate
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
The name copper was taken from ______.
