Advertisements
Advertisements
प्रश्न
Give the symbol and valency of the following element and radical.
Sulphite
Advertisements
उत्तर
| Element/Radical | Symbol | Valency |
| Sulphite | \[\ce{SO3}\] | two |
APPEARS IN
संबंधित प्रश्न
An element X belongs to 3rd period and group 2 of the periodic table. State:
(a) number of valence electrons
(b) valency
(c) metal or non-metal
(d) name of the element
Answer the following question.
How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
Give the symbol and valency of the following element and radical.
Potassium
Give the chemical formula of sodium hydroxide
Give the chemical formula of sodium bicarbonate
Give the chemical formula of calcium phosphate
Which of the following statements about the Modern periodic table is correct?
Position of A, B and C three elements is given in the table from the modern periodic table. Answer the following questions.
| Periods | Group 2 | Group 17 |
| 2 | ----- | A |
| 3 | B | ----- |
| 4 | ----- | C |
- What is an element metal or nonmetal?
- Which is the outermost orbit of element B?
- Identify C element and it's physical state.
______ forms the basis of the modern periodic table.
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
