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प्रश्न
A particle P has 18 electrons, 20 neutrons and 19 protons. This particle must be :
पर्याय
a molecule
a binary compound
an anion
a cation
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उत्तर
cation
Particle P must be a cation.
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संबंधित प्रश्न
Write the names of ZnS compounds :
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
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The valencies (or charges) of some of the ions are given below :
| Ion | Valency (Charge) | Ion | Valency (Charge) |
| Sodium ion | 1+ | Bromide ion | 1– |
| Ammonium ion | 1+ | Hydroxide ion | 1– |
| Calcium ion | 2+ | Sulphate ion | 2– |
| Lead ion | 2+ | Phosphate ion | 3– |
Using this information, write down the formulae of the following compounds :
(i) Sodium phosphate
(ii) Ammonium sulphate
(iii) Calcium hydroxide
(iv) Lead bromide
Give example.
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Bromide
State if the following element or radical is divalent?
Nitride
State if the following element or radical is divalent?
Bisulphite
