S2- ie sulphide ion has 18 electrons(16+2) another specie which has same number of electrons is Cl-(17+1) and Argon(18 electrons)
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 atomic number is 16. Neutral sulfur would then have 16 protons and 16 electrons. Since we're dealing with S2- though, we need to add 2 electrons to this, making 18.
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+).
The bond order of S2 is 1.5. This is calculated by taking the total number of bonding electrons (6) and dividing by the total number of bonding regions (4).
Nosuch ion as ' s2- '. If you mean ' S^(2-) '. It is an ANION and contains two extra electrons in its outer el electron shell. A sulphur atom contains 16 proton and 16 electrons. A Sulphide anion contains 16 protons and 18 electrons. NB When writing chemical symbols , be they one or two letter symbols, the first letter is ALWAYS a CAPITAL letter. This is the recognised international standard. So .' s2- ' is incorrect, and should read ' S2- ' or better ' S^(2-) '.
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-.
There is no such noble gas with the same electron configuration as helium ion. Helium is the first noble gas, is stable and does not form ions. There can be, however, other ions such as H- or Li+ that will have the same number of electrons as element helium.
The Sulfide ion, S2-, is isoelectronic with Cl-
S2- ion is isoelectronic with argon (with 18 electrons).
8 - s2 and p6
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.
S for sulfur because the number of protons tells you the atomic number with is 16 and 16 is sulfur. The electrons means it is an ion with two more electrons than protons. The neutrons have no charge but add mass to the element.
Sulfur's atomic number is 16. Neutral sulfur would then have 16 protons and 16 electrons. Since we're dealing with S2- though, we need to add 2 electrons to this, making 18.
Nosuch ion as ' s2- '. If you mean ' S^(2-) '. It is an ANION and contains two extra electrons in its outer el electron shell. A sulphur atom contains 16 proton and 16 electrons. A Sulphide anion contains 16 protons and 18 electrons. NB When writing chemical symbols , be they one or two letter symbols, the first letter is ALWAYS a CAPITAL letter. This is the recognised international standard. So .' s2- ' is incorrect, and should read ' S2- ' or better ' S^(2-) '.
3rd S2 P6 D10 so 18 electrons maximum
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+).
The bond order of S2 is 1.5. This is calculated by taking the total number of bonding electrons (6) and dividing by the total number of bonding regions (4).