Assertion: metal's atom | /r/HasProperty | gradual change
Facets:
value: to metallic
type: OTHER
value: in character
type: OTHER
value: across a period
type: TEMPORAL
value: to nonmetallic
type: OTHER
Source sentences:
text: With some irregularities, atoms therefore become smaller, ionization energy increases, and there is a gradual change in character, across a period, from strongly metallic, to weakly metallic, to weakly nonmetallic, to strongly nonmetallic elements.