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प्रश्न
Give the names and symbols of the first twenty elements of the periodic table.
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उत्तर
| Name | Symbol | Name | Symbol |
| Hydrogen | H | Sodium | Na |
| Helium | He | Magnesium | Mg |
| Lithium | Li | Aluminium | Al |
| Beryllium | Be | Silicon | Si |
| Boron | B | Phosphorus | P |
| Carbon | C | Sulphur | S |
| Nitrogen | N | Chlorine | Cl |
| Oxygen | O | Argon | Ar |
| Fluorine | F | Potassium | K |
| Neon | Ne | Calcium | Ca |
संबंधित प्रश्न
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 the type of element for the following:
Phosphorus
State the type of element for the following:
Aluminium
Give the symbol of the following element:
Magnesium
Write the radical of the following valency:
Sodium
Write the radical of the following valency:
magnesium
Write the chemical formula of the following:
magnesium sulphate
Give the formula of the following gas:
Sulphur 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).
Bisulphite
Name three metals whose symbols are derived: from their Latin names.
