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Question
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
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Solution
The particle which has 18 electrons, 18 neutrons and 17 protons is a negatively-charged Chloride ion (Cl−).
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RELATED QUESTIONS
The valencies (or charges) of some of the ions are given below :
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| Sodium ion | 1+ | Bromide ion | 1– |
| Ammonium ion | 1+ | Hydroxide ion | 1– |
| Calcium ion | 2+ | Sulphate ion | 2– |
| Lead ion | 2+ | Phosphate ion | 3– |
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