Ronald asked:
Ms Pang, hw u noe whether the Element electron charge is -2, -1, +1 or +2
My reply:
an ion ( not element ) will have a charge of minus or plus depends whether it is a metal or non-metal.
For metal, it tends to form ions of charge +1, +2, +3 ( cations- lose electrons )
For non-metal, it tends to form ions of charge -1,-2 ( anions - gain electrons )
ms pang:)
