MCQ
Which one of the following combination represents a metallic element
  • A
    $2, 8, 7$
  • B
    $2, 8, 8$
  • C
    $2, 8, 4$
  • $2, 8, 2$

Answer

Correct option: D.
$2, 8, 2$
d
$(d) 2,8,2$. it would donate ${e^ - }$ more easily.

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