Assertion: manganese | /r/AtLocation | period
Facets:
Source sentences:
text: Manganese is a transition metal found in Period 4 and Group 7 or VII B of the Periodic Table of Elements.
text: Manganese is a metal with an atomic number of 25, an atomic weight of 54.94, a density of 7.3 grams per cubic centimeter, an ionization energy of 7.434 eV, and is located in period 4, group 7 of the periodic table.