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प्रश्न
Give the symbol and valency of the following element and radical.
Sulphate
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उत्तर
| Element/Radical | Symbol | Valency |
| Sulphate | \[\ce{SO4}\] | two |
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संबंधित प्रश्न
State modern periodic law.
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Give reasons for your choice.
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Answer the following question in one sentence.
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Elements in the modern periodic table are arranged in ______groups and______ periods.
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| Element | A | B | C |
| Atomic number | 2 | 10 | 5 |
On moving from left to right in a period in the periodic table, the size of the atom ______
In the modern periodic table, elements are arranged according to their ______
Noble gases are placed in the ______ group in the modern periodic table.
Match the atomic number with the following:
A rare gas.
