S(2-) : sulfide ion
Al(3+) : aluminum ion
It is still oxygen; elements only change if the number of neutrons becomes changed. Oxygen with 2 extra electrons is O^-2.
Peroxide (O22-)
02-
2 electrons
O2
The symbol is S2- because to become an ion a sulfur atom gains two electrons and each electron has a 1- charge.
Gains two electrons. S 2-.
sulfur has 16 electrons with a neutral charge the most common ion formed is the sulfide ion, with a negative 2 charge to get a negative 2 charge, it gains 2 electrons, thus fulfilling the octet rule and acquiring the electron configuration of argon
2- Because, to get a full octet, Sulfur gains two electrons to become like Argon, thus it gains a charge of 2-.
Sulpher gains two electrons as it is in group 6 and to be stable it would obviously need two more electrons.. :)
Sulfide ion is formed when the sulfur atom gains two electrons from an external atom.
The symbol is S2- because to become an ion a sulfur atom gains two electrons and each electron has a 1- charge.
Sulfur gains 2 electrons to become stable.
Gains two electrons. S 2-.
sulfur has 16 electrons with a neutral charge the most common ion formed is the sulfide ion, with a negative 2 charge to get a negative 2 charge, it gains 2 electrons, thus fulfilling the octet rule and acquiring the electron configuration of argon
It becomes a sulfur ion with a charge of -2.
A sulfur atom gains 2 electrons when it becomes a sulfide ion.
The element is sulfur with 16 electrons. It gains two electrons to form sulfide ion which has 18 electrons as that of argon.
It gains or loses electrons.
An ions is formed when an atom gains or loses electrons.
2- Because, to get a full octet, Sulfur gains two electrons to become like Argon, thus it gains a charge of 2-.
Sulpher gains two electrons as it is in group 6 and to be stable it would obviously need two more electrons.. :)