Write the electron configuration for each of the following ions using the noble gas core notation.
Fe^2+
p.s. it is not [Ar] 4s2 3d4 or [Ar] 4s1 3d5
Cr^3+
p.s. it is not [Ar] [Ar] 4s2 3d1
2007-09-13 03:53:01 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Also, what is the name of Ca(BrO2)2 with any possible oxidation numbers.
p.s. it is not calcium bromite or calcium bromite(II)
2007-09-13 04:05:10 · update #1
Fe2+ is [Ar]3d6
Cr3+ is [ar] 3d3
calcium bromite (maybe they want dibromite, but its really not necessery)
or
Calcium bromide hydrate
its listed on wiki http://en.wikipedia.org/wiki/Polyatomic_ion
2007-09-13 04:07:12 · answer #1 · answered by billgoats79 5 · 0⤊ 0⤋
Fe 2+
ps. it is [Ar] 3d6
Cr3+
ps. it is [Ar] 3d3
2007-09-13 04:04:57 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋