Question

What is the overall charge for iron, in iron(III)iodide?

Answer 1

\[Fe ^{3}\]

Answer 2

so would the answer be +3? @SmartCookie100

Answer 3

yep

Answer 4

the roman numeral in the name (III) tells you what the charge of the transition metal is going to be

Answer 5

But what about the overall charge for calcium in Ca3N2? @JFraser

Answer 6

calcium isn't a transition metal, and has only one option when it forms an ion. A single calcium atom \(1s^22s^22p^63s^23p^64s^2\) will always LOSE its two valence electrons to adopt a configuration like argon \(1s^22s^22p^63s^23p^6\).

what charge will a calcium ion always make?

Answer 7

um +3 @JFraser

Answer 8

+2