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प्रश्न
Fill in the blank
An ion which has a positive charge is called a ..................
उत्तर
An ion which has a positive charge is called a cation .
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संबंधित प्रश्न
What are the atomic numbers of elements whose outermost electrons is represented by 2p3.
The atomic number and the mass number of sodium are 11 and 23 respectively. What information is conveyed by this statement.
The atomic number of four elements A, B, C and D are 12, 13, 15 and 3 respectively. The element which cannot form a cation is :
Match the atomic numbers 4,8,10,15 and 19 with the following:
Element which can form trivalent ion
Name or state the following:
Elements having same mass number but different atomic number
What are nucleons? How many nucleons are present in Phosphorous? Draw its structure.
What is a neutron?
The elementary particles such as protons and neutrons are collectively called ______.
Match the following:
| Column A | Column B | ||
| 1. | Mass of proton | a. | +1 |
| 2. | Mass of electron | b. | -1 |
| 3. | Charge of electron | c. | 9.31 x 10-28g |
| 4. | Charge of proton | d. | 1.67 x 10-24g |
Ca2+ has completely filled outer shell. Justify your answer.
