{"first_sentence": {"type": "/type/text", "value": "The lanthanide elements are usually defined as those in which the 4f-orbitals are progressively filled; this definition includes the elements Ce (cerium) to Lu (lutetium)."}, "physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 08:14:56.482104"}, "weight": "1.2 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Taylor & Francis"], "number_of_pages": 176, "isbn_13": ["9781560329282"], "id": 11676088, "edition_name": "1 edition", "isbn_10": ["1560329289"], "publish_date": "September 14, 2001", "key": "/b/OL8616116M", "authors": [{"key": "/a/OL3042261A"}, {"key": "/a/OL3042262A"}], "title": "Chemistry of the f-Block Elements (Advanced Chemistry Texts, Volume 5)", "type": {"key": "/type/edition"}, "subjects": ["Chemistry", "Science/Mathematics", "Inorganic Chemistry", "Science", "Chemistry - Analytic", "Life Sciences - Biology - Marine Biology", "Science / Marine Biology", "Chemistry - Organic", "Chemistry - Inorganic"], "physical_dimensions": "10.3 x 6.8 x 0.7 inches", "revision": 1}