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प्रश्न
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
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उत्तर
The particle which has 18 electrons, 18 neutrons and 17 protons is a negatively-charged Chloride ion (Cl−).
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संबंधित प्रश्न
Name the following radicals :
HC03
Name the following radicals :
OH
Define ‘formula mass’ of a compound.
Fill in the following blank with suitable word:
The particle which is formed by the loss or gain of electrons by an atom is called..............
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium zincate
Select the correct answer to the statement given below:
An elementary particle of matter – of a group of atoms of different elements behaving as a single unit with charge on the group.
State if the following element or radical is divalent?
Dichromate
Match the names of ions and radicals from 1 to 10 with their correct answer from A to Q.
| Column A | Column B |
| 1. Hypochlorite | A: Hg2+ |
| 2. Permanganate | B: \[\ce{MnO_4^1-}\] |
| 3. Plumbous | C: Sn4+ |
| 4. Zincate | D: Pb2+ |
| 5. Nitride | E: Sn2+ |
| 6. Mercuric | F: Pb4+ |
| 7. Stannic | G: \[\ce{SO_3^2-}\] |
| 8. Nitrite | H: N3- |
| 9. Sulphite | I: \[\ce{NO_2^1-}\] |
| 10. Dichromate | J: \[\ce{MnO_4^2-}\] |
| K: Hg1+ | |
| L: \[\ce{SO_4^2-}\] | |
| M: CIO1- | |
| N: \[\ce{ZnO_2^2-}\] | |
| O: \[\ce{Cr_2O_7^2-}\] | |
| P: \[\ce{CrO_4^2-}\] | |
| Q: \[\ce{ClO_3^1-}\] |
