1) The representative metal ions are Colorless.?
ans:- Because the electrons of (S) and (P) sublevels need a high amount of energy Higher than that of the visible light.
The representative elements are Colourless because……………..
a- they absorb the visible light.
c- They do not absorb the visible light.
b- They contain unpaired electrons.
d- They do not contain unpaired electrons.
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