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प्रश्न
Give the chemical formula of carbonic acid
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उत्तर
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{H2CO3}\]
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संबंधित प्रश्न
What is the significance of atomic number in the modern classification of elements? Explain with the help of an example.
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A covalent compound formed by an element in period 2 and a halogen.
Name an element of group 18 which can form compounds.
Give the symbol and valency of the following element and radical.
Carbonate
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Group 1 and 2 : s block : : group 13 and 18 : ______
Find the odd one out and give its explanation.
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
- Write the electronic configuration of element X, given by its symbol as under: \[\ce{^40_20 X}\]
- Determine its position in the modem periodic table.
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- Name one other element of its group.
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