Please type the correct option number as the answer.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1) Gallium-> Ground state Ga : Ar 3d10 4s2 4p1 Excited state Ga(3+) : Ar 3d10 4s0 4p0 Electrons in outermost shell = 10
2) Gold-> Ground state Au : [Xe] 4f14 5d10 6s1 Excited state Au(3+) : [Xe] 4f14 5d8 6s0 Electrons in outermost shell = 8
3) Iron-> Ground state Fe : [Ar] 3d6 4s2 Excited state Fe(3+) : [Ar] 3d5 4s0 Electrons in outermost shell = 5
4) Lanthanum-> Ground state La : [Xe] 5d1 6s2 Excited state La(3+) : [Xe] 5d0 6s0 Electrons in outermost shell = 0
Hence, the correct increasing order of ions of electrons in outermost shell is
Ga3+ > Au+3 > Fe3+ > La3+