Assertion: calcium | /r/CapableOf | appear below magnesium
Facets:
value: in the same column
type: LOCATION
value: as the other alkaline earth metals
type: OTHER
Source sentences:
text: Calcium (Ca) is No. 20 in the periodic table of the elements, appearing just below magnesium in the same column (Group IIA) as the other alkaline earth metals (a group of metals that are more chemically reactive than most metals).