The number is 1 more than the number of protons.
A cesium ion with a +1 charge (Cs+) has lost one electron. Cesium (Cs) normally has 55 electrons, but the Cs+ ion has 54 electrons.
A 37Cl ion with a charge of 1+ has 18 electrons. This is because the neutral chlorine atom has 17 electrons, and since the ion has a positive charge of 1, it has lost 1 electron, resulting in a total of 18 electrons.
A chloride ion has gained one electron to become a Cl- ion, making it uncharged overall but with 18 electrons to match the 17 protons in its nucleus.
Potassium will lose 1 electron to form a 1+ ion.
The ion Na+ has 11 protons, 12 neutrons, and 10 electrons. This is because sodium has an atomic number of 11, meaning it naturally has 11 protons and 11 electrons, but as an ion with a +1 charge, it has lost 1 electron.
A potassium ion (K+) has 18 electrons. Potassium has 19 electrons in its neutral state, but when it loses one electron to become an ion, it has 18 electrons.
Chlorine will not for Cl-7 ion. It will form Cl-1 ion, which has total of 18 electrons.
A cesium ion with a +1 charge (Cs+) has lost one electron. Cesium (Cs) normally has 55 electrons, but the Cs+ ion has 54 electrons.
A chlorine ion is monatomic ― it is just Cl-.
A 37Cl ion with a charge of 1+ has 18 electrons. This is because the neutral chlorine atom has 17 electrons, and since the ion has a positive charge of 1, it has lost 1 electron, resulting in a total of 18 electrons.
A chloride ion has gained one electron to become a Cl- ion, making it uncharged overall but with 18 electrons to match the 17 protons in its nucleus.
There are 18 electrons in a chloride ion.
The ion Fr+ has 86 electrons.
a cuprous ion has 28 electrons.
Potassium will lose 1 electron to form a 1+ ion.
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A neutral atom has an equal number of protons and electrons. Protons are positively charged, and electrons are negatively charged. Therefore if you have an ion with a -1 charge, it has one extra electron. So your ion has 85 protons.