26.
Nickel has an atomic number of 28, which means that in a normal state, it would have 28 electrons. Ni+2 means that it oxidized by losing two electrons and would thus have only 26 remaining.
An Mg2+ ion has lost two electrons, resulting in a total of 10 electrons. Magnesium normally has 12 electrons but when it forms a 2+ ion, it loses two electrons.
A Co3+ ion has lost three electrons from its neutral state, so it has 23 electrons.
The phosphate ion is a polyatomic ion with a total charge of -3. This means it has gained 3 electrons to achieve an overall negative charge, so it has a total of 30 electrons.
Ba2+ ion has a total of 56 electrons. Barium (Ba) has 56 electrons in its neutral state, and when it loses two electrons to become Ba2+, it now has 54 electrons remaining.
A sodium ion with the symbol Na+ has 10 electrons. Sodium normally has 11 electrons, but when it loses one electron to form a Na+ ion, it has 10 electrons.
An Mg2+ ion has lost two electrons, resulting in a total of 10 electrons. Magnesium normally has 12 electrons but when it forms a 2+ ion, it loses two electrons.
The H+ ion has no electrons.
A Co3+ ion has lost three electrons from its neutral state, so it has 23 electrons.
Chlorine will not for Cl-7 ion. It will form Cl-1 ion, which has total of 18 electrons.
18 electrons
The phosphate ion is a polyatomic ion with a total charge of -3. This means it has gained 3 electrons to achieve an overall negative charge, so it has a total of 30 electrons.
Ba2+ ion has a total of 56 electrons. Barium (Ba) has 56 electrons in its neutral state, and when it loses two electrons to become Ba2+, it now has 54 electrons remaining.
A sodium ion with the symbol Na+ has 10 electrons. Sodium normally has 11 electrons, but when it loses one electron to form a Na+ ion, it has 10 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.
chlorine atom has 17 electrons when it accepts one more it becomes chloride ion so chloride has total 18 electrons, isoelectronic with Argon.
The element that forms a 3+ ion with ten electrons is sodium (Na). Sodium has 11 protons and normally has 11 electrons, but when it loses 3 electrons to form a 3+ ion, it has a total of 10 electrons.
A CD3+ ion has 3 electrons. The "3" in CD3 refers to the number of carbon-hydrogen bonds in the group. Since carbon typically forms 4 bonds, one of those bonds is to the ion that carries a positive charge, resulting in a total of 3 electrons.