Question

WHAT IS THE ION CONFIGURATION OF
GALLIUM 3+
AND
TIN 4+

AND WHAT ARE THE RULES (WRITTEN CLEARLY)

please help i really dont know

Answer 1

Please do not type in all-caps. That's considered rude online, as if you're SHOUTING.

Answer 2

Here is a mnemonic to help with electron configurations.
https://www.google.com/search?q=mnemonic+for+electron+filling&tbm=isch&imgil=EkNTrJFoFS3EqM%253A%253BEVsKBY8LWm_POM%253Bhttps%25253A%25252F%25252Fwww.slideshare.net%25252FMosheLacson%25252Felectronic-configuration&source=iu&pf=m&fir=EkNTrJFoFS3EqM%253A%252CEVsKBY8LWm_POM%252C_&usg=__qb2BoITRNiDjxX3evylP1ICocOs%3D&biw=1024&bih=612&ved=0ahUKEwjfm7317cXWAhXK31QKHSEgBXEQyjcIPg&ei=itvLWd-uI8q_0wKhwJSIBw#imgrc=kwQxEPVqRAQSeM:

You see from that for 31Ga it will be
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1 for the atom. Take off the last three (the 4s2 and 4p1) to get 31Ga^3+.
I'll let you do the Sn and Sn^4+.

Answer 3

https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Electron_orbitals.svg/525px-Electron_orbitals.svg.png

see the listing at the bottom by ordered energy level.