The atomic mass of copper is 63.546 amu. Do any copper isotopes have a mass of 63.546 amu? Explain.
Solution : Step 1: Here, we have to write the chemical formulas for the ions given. The ions given are oxyanions, monoatomic and polyatomic anions. Let’s see what is oxyanion, monoatomic and polyatomic anion first and then rules for naming the anions using which we can write the chemical formulas and then we would write chemical formula for them. Step 2: A monatomic anion is an ion consisting of a single atom. polyatomic anion is an ion that contains more than one atom, even if the atoms are of the same element. 2+ Example: calcium carbonate consists of the monatomic ion Ca and the polyatomic ion CO 2. 3 An oxyanion or oxoanion is an Polyatomic anions(negative ions) containing oxygen have names ending in either -ate or -ite. It is an ion with the generic formula A O x y- Where, ‘A’ represents a chemical element ‘ O represents an oxygen atom.