The elements having the maximum and minimum melting points among the members of group 13 respectively are

Question

The elements having the maximum and minimum melting points among the members of group 13 respectively are (A) B , Tl (B) T 1, B (C) B , Ga (D) Al , Tl

Tardigrade Admin · Accepted Answer

Melting point of group 13 elements decreases down the group but the trend is not regular. Boron has highest melting point because of its very strong crystal lattice. Gallium has very low melting point (303 K ) and therefore can exist in liquid state during summer.

Q. The elements having the maximum and minimum melting points among the members of group $13$ respectively are

$B, Tl$

$T 1, B$

$B, G a$

$A l, Tl$

Melting point of group $13$ elements decreases down the group but the trend is not regular. Boron has highest melting point because of its very strong crystal lattice. Gallium has very low melting point $(303 K)$ and therefore can exist in liquid state during summer.

Q. The elements having the maximum and minimum melting points among the members of group 13 respectively are

B,Tl

T1,B

B,Ga

Al,Tl