How do you find number of electrons for #Ca^+#?

1 Answer
Jul 31, 2016

Answer:

For #Ca# metal, #Z,"the atomic number"=20#.......

Explanation:

If #Z=20#, by definition, there are #20# massive, positively charged particles in the calcium nucleus. In the NEUTRAL atom, there must be an equal number of fundamental, negatively-charged particles to balance the positive charge, and these we call electrons.

And thus in a #Ca^+# atom there are necessarily 19 electrons to account for the charge. How many electrons associated with #Ca^(2+)#?