What is the identity of element Q if the ion #Q^(2+)# contains 10 electrons?

1 Answer
Mar 18, 2017

Answer:

Got a Periodic Table............?

Explanation:

You know that mass and charge are conserved in chemical reactions. And you have performed an oxidation reaction which we can represent in this way:

#Q+DeltararrQ^(2+)+2e^-#

So #Q#, and #Q^(2+)# MUST HAVE 12 positive charges in their nuclei? Why #"must"#?

If #Z=12#, then as what metal does the Periodic Table identify the element? It begins with a #"M"#............