The relationship between first, second and third ionisation enthalpies of each group-13 element is

Question

The relationship between first, second and third ionisation enthalpies of each group-13 element is (A) Δi H1>Δi H2>Δi H3 (B) Δi H1<Δi H2<Δi H3 (C) Δi H1=Δi H2>Δi H3 (D) Δ i H3>Δ i H1>Δ i H2

Tardigrade Admin · Accepted Answer

The order of ionisation enthalpies, as expected, is Δi H1<Δi H2<Δi H3 .

Q. The relationship between first, second and third ionisation enthalpies of each group- $13$ element is

$Δ_{i} H_{1} > Δ_{i} H_{2} > Δ_{i} H_{3}$

$Δ_{i} H_{1} < Δ_{i} H_{2} < Δ_{i} H_{3}$

$Δ_{i} H_{1} = Δ_{i} H_{2} > Δ_{i} H_{3}$

$Δ_{i} H_{3} > Δ_{i} H_{1} > Δ_{i} H_{2}$

The order of ionisation enthalpies, as expected, is
$Δ_{i} H_{1} < Δ_{i} H_{2} < Δ_{i} H_{3} .$

Q. The relationship between first, second and third ionisation enthalpies of each group-13 element is

Δi​H1​>Δi​H2​>Δi​H3​

Δi​H1​<Δi​H2​<Δi​H3​

Δi​H1​=Δi​H2​>Δi​H3​

Δi​H3​>Δi​H1​>Δi​H2​