A +2, B +1, C -1 and D -2 are the stable ions formed by the elements ' A prime, ' B ', ' C ' and ' D '. Arrange A, B, C and D in the increasing order of their group numbers in the periodic table.

Question

A +2, B +1, C -1 and D -2 are the stable ions formed by the elements ' A prime, ' B ', ' C ' and ' D '. Arrange A, B, C and D in the increasing order of their group numbers in the periodic table. (A) ABDC (B) BADC (C) ABCD (D) BACD

Tardigrade Admin · Accepted Answer

A arrow A+2+2 e ⇒ 2 text nd text group B arrow B+1+e ⇒ 1 text st text group C+e arrow C-1 ⇒ 17 text th text group D+2 e arrow O-2 ⇒ 16 text th text group

Q. $A^{+ 2}, B^{+ 1}, C^{- 1}$ and $D^{- 2}$ are the stable ions formed by the elements ' $A^{'}$ , ' $B$ ', ' $C$ ' and ' $D$ '. Arrange A, B, C and D in the increasing order of their group numbers in the periodic table.

ABDC

BADC

ABCD

BACD

$A \to A^{+ 2} + 2 e \Rightarrow 2^{nd} group$
$B \to B^{+ 1} + e \Rightarrow 1^{st} group$
$C + e \to C^{- 1} \Rightarrow 1 7^{th} group$
$D + 2 e \to O^{- 2} \Rightarrow 1 6^{th} group$

Q. A+2,B+1,C−1 and D−2 are the stable ions formed by the elements ' A′, ' B ', ' C ' and ' D '. Arrange A, B, C and D in the increasing order of their group numbers in the periodic table.