Assertion: metal's force | /r/Causes | the increase
Facets:
value: in melting/boiling points
type: LOCATION
Source sentences:
text: and they get more reactive up the group because the nucleus of the smaller atom attracts electrons more strongly (more details in the Group 7 Halogens Notes 2 , Cl 2 , Br 2 etc.) to the increase in intermolecular forces causing the increase in melting/boiling points.