Residence
A Degree
Inorganic Chemistry – Core
Periodicity
Melting and boiling factors down group 2
Studying outcomes
After finding out this web page, you must be capable to:
Melting and boiling factors
The desk reveals melting factors and boiling factors for the frequent parts in group 2.
Description
The graph reveals how melting factors and boiling factors range down group 2. Magnesium is excluded to start with, however you possibly can toggle it on and off.
What’s going on?
Melting level
There’s a common lower in melting level happening group 2. Nevertheless, in the event you embody magnesium, you will notice that its melting level is decrease than the melting level of calcium, the subsequent ingredient down. When you embody magnesium, there isn’t a apparent pattern in melting factors (see under).
Boiling factors
There doesn’t look like a pattern in boiling factors happening the group. Once more magnesium is an anomaly. When you exclude it, the boiling factors lower from beryllium to strontium, then enhance to radium.
What’s going on with magnesium?
I want I knew! There doesn’t appear to be a passable rationalization for the anomalous melting and boiling factors of magnesium. One rationalization entails the completely different packing constructions for the metallic atoms:
Sadly, these variations can not correctly clarify what’s going on. If and once I discover a passable rationalization, I’ll replace this web page.
– “magnesium melting point”