Give reason

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.

Choose

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.