18 electrons
In a sulfur ion with a charge of 2-, there are 18 electrons (16 from the neutral sulfur atom and two additional electrons to account for the negative charge). The number of protons remains the same as in a neutral sulfur atom, which is 16.
The ion notation for sulfur with 18 electrons would be S2-. This means that sulfur has gained two extra electrons to achieve a full octet, giving it a -2 charge.
A sulfur ion can have a charge of either +2 or -2, depending on whether it gains or loses electrons. Specifically, sulfur can either gain two electrons to have a charge of -2 (S2-) or lose two electrons to have a charge of +2 (S2+).
The symbol is S2- because to become an ion a sulfur atom gains two electrons and each electron has a 1- charge.
The correct symbol for a sulfur ion with 18 electrons would be S^2-. This means the ion has gained 2 extra electrons, giving it a total of 18 electrons and a 2- charge.
they both gain 2 electrons becoming the anions Oxide and Sulfide, O2- and S2-
Sulfur can both gain and lose electrons when forming ions. It can gain two electrons to form a sulfide ion (S2-) or lose two electrons to form a sulfide ion (S2+).
A sulfide ion, S2-, has 18 electrons. A neutral sulfur atom has 16 electrons, the same as the number of protons, which is the atomic number. Since electrons have a negative charge, a sulfur atom must gain two extra electrons in order to form the sulfide ion with a charge of 2-.
Sulfur (S) has 6 valence electrons. The S2- ion gains two electrons, bringing the total to 8 valence electrons.
Sulfur's atomic number is 16. Therefore, neutral sulfur has 16 protons and 16 electrons. Since we're dealing with S2-, we need to add 2 electrons to that, giving 18 total.
In a sulfur ion with a charge of 2-, there are 18 electrons (16 from the neutral sulfur atom and two additional electrons to account for the negative charge). The number of protons remains the same as in a neutral sulfur atom, which is 16.
An S2- ion has gained two electrons, giving it a 2- charge, while a neutral sulfur atom has an equal number of protons and electrons. This means that the S2- ion has two more electrons than a neutral sulfur atom.
Sodium loses one electron to form a Na+ ion. Sulfur gains two electrons to form a sulfide ion, S2-.
The ion notation for sulfur with 18 electrons would be S2-. This means that sulfur has gained two extra electrons to achieve a full octet, giving it a -2 charge.
S2- ion is isoelectronic with argon (with 18 electrons).
A sulfur ion can have a charge of either +2 or -2, depending on whether it gains or loses electrons. Specifically, sulfur can either gain two electrons to have a charge of -2 (S2-) or lose two electrons to have a charge of +2 (S2+).
The symbol is S2- because to become an ion a sulfur atom gains two electrons and each electron has a 1- charge.