a positive sign in an atom symbol denotes an ion, for example, Fe2+
Fe3- represents an ion of iron with a 3- charge. The symbol "Fe" refers to the element iron, and the superscript "-3" indicates that the ion carries a negative charge of 3. The 3- charge means that the ion has gained three electrons to achieve a stable configuration.
This is the electrical charge of the ion.
the symbol for Oxygen is O, the Oxygen ion is 2-. therefore the symbol for the oxygen ion is O2-
the symbol of ion is base on the lemement that you are trying to fin out
The formula for a chromate ion is CrO4-2, and its charge is -2.
Carbon's symbol is C. A carbon atom has no charge, but a carbon ion has a +2 charge.
The chromate ion has a charge of 2-. Its symbol is CrO42-.
The phosphide ion has a charge of 3-. Its symbol is P3-.
The formula, including the charge, for a chromate ion is CrO4-1.
It depends if it the ion of magnesium, if it is the ion, then it is positive. If not, then it is neutral.
The symbol is S2- because to become an ion a sulfur atom gains two electrons and each electron has a 1- charge.
It would form the negatively charged phosphide ion with a charge of 3-, and the symbol P3- .
a positive sign in an atom symbol denotes an ion, for example, Fe2+
There is no such thing as Na3. Na is the symbol for sodium and as an ion, it will have a +1 charge.
This is the ion Th4+
It is the cyanide ion. There should be a single negative charge on it