The number of protons and electrons of an ion is 17 and 18. Find the name of the element symbol of the ion and the number of electrons gained/lost.

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Solution

Since the number of protons(atomic number) is given as 17, it will be a chlorine atom.
In the ion, there are 18 electrons means chlorine has gained one electron.
A chlorine atom on gaining one electron will form a chloride ion (Cl^-1).

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The number of protons and electrons of an ion is 17 and 18. Find the name of the element symbol of the ion and the number of electrons gained/lost.

Since the number of protons(atomic number) is given as 17, it will be a chlorine atom.In the ion, there are 18 electrons means chlorine has gained one electron.A chlorine atom on gaining one electron will form a chloride ion (Cl-1).

Since the number of protons(atomic number) is given as 17, it will be a chlorine atom.
In the ion, there are 18 electrons means chlorine has gained one electron.
A chlorine atom on gaining one electron will form a chloride ion (Cl^-1).