The temperature at which thermal decomposition of metal nitrates (e.g. Ca(NO)₃) of Group-II takes place,

remains constant across the Group II metals

The temperature at which thermal decomposition of metal nitrates (e.g.

1.	The temperature at which thermal decomposition of metal nitrates (e.g. Ca(NO)₃) of Group-II takes place,
A.	increases along the Period2
B.	increases down the group
C.	decreases down the group
D.	remains constant across the Group II metals
Answer» C. decreases down the group