Give the coordination numbers and write the formulas for each of the following, including all isomers where appropriate:
(a) tetrahydroxozincate(ii) ion (tetrahedral)
(b) hexacyanopalladate(iv) ion
(c) dichloroaurate(i) ion (note that aurum is latin for "gold")
(d) diamminedichloroplatinum(ii)(e) potassium (iii)(f) hexaamminecobalt(iii) hexacyanochromate(iii)(g) dibromobis(ethylenediamine) cobalt(iii) nitrate

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answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

12 is it do you think so