Question

Name the ion with symbol ${S^{2 - }}$

Answer 1

To answer this question, you should recall the concept of ions. Ion, any atom or cluster of atoms that bears one or additional positive or negative electrical charges. Atoms form ions to achieve stable configuration.

Complete Step by step solution:
Ions with a positive charge are called cations and ions with negative charges are called anions. Ions are generated through the addition of electrons to neutral atoms or molecules or the removal of electrons from neutral atoms or molecules. It can also form through the combination of ions with other particles. It can be through the breaking of a covalent bond between atoms, so that each of the electrons of the bond is left in association with one amongst the earlier bonded atoms.
Example of ions are
a)Conversion of sodium atom to sodium cation through the loss of an electron
b)Conversion of a chlorine atom to chloride anion through gain of an electron.
c)The addition of a hydrogen cation to ammonia molecule leading to the formation of ammonium ion
d)The dissociation of a water molecule to make a hydrogen cation and a hydroxide anion.
e)The given ion is named as sulphide because of the symbol with charge $- 2$

Note: Make sure you remember the difference between isotopes, isotone, isobars and isoelectronic species. Isotopes refer to the atoms of the same element having the same atomic number but different mass numbers. Isotones refers to two nuclides which have the same number of neutrons, but different proton number. Isoelectronic species refers to the elements or ions that have an equal number of electrons. They have different chemical properties because they have different atomic numbers.