Adeline
well, elements like to gain/lose electrons to gain a noble gas configuration. so.. elements in group 1 all like to lose an electron, since that's the fastest they can get to 8 or 2 electrons in their outer electron shell, which is more stable. so the cations of group 1 would be +1. anions and cations are different for different groups, so as you go across the third period you're going to get every kind of ion charge. I don't think knowing the period an element is in is going to help you predict the charge.

Bilal Shafique
Your Own Home Based Business For Just $1500 Start your own home based business today You receive 100% of profits Get Paid to your account instantly Easy Work For Great Pay www [dot]pastenearn[dot]tk