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प्रश्न
Name the cation and the anion in the salt – calcium sulphate
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उत्तर
In salt the positive and negative parts exist as ions.
- The positively charged ions are called – cations. Na1+
- The negatively charged ions are called – anions. NO31−
| Name of compound | Formula | Cation | Anion |
| Calcium sulphate | \[\ce{CaSO4}\] | \[\ce{Ca+}\] | \[\ce{SO4-}\] |
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संबंधित प्रश्न
Explain why, the noble gases are placed in a separate group.
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same period of the periodic table?
The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?
(i) A and D
(ii) C and D
(iii) A and B
(iv) B and C
(v) A and C
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?
State the number of elements in Period 1 of the Periodic Table.
Noble gases belong to______ group of the periodic table.
State whether true or false. If false, correct the statement.
Lanthanides and actinides are kept at the bottom of the periodic table because they resemble each other but they do not resemble with any other group elements.
Which of the following elements does not lose an electron easily?
Give the criteria on the basis of which elements are placed (i) in a group and (ii) in a period in the modern periodic table. The atomic number of an element is 16. According to the criteria, in which group and period it should be placed?
Match the atomic number with the following:
An element of group 2.
