valent state
31Samarium — promethium ← samarium → europium ↑ Sm ↓ …
32Non-innocent ligand — In chemistry, a (redox) non innocent ligand is a ligand in a metal complex where the oxidation state is unclear. Typically, complexes containing non innocent ligands are redox active at mild potentials. The concept assumes that redox reactions in …
33Sacrifice of the Mass — • The word Mass (missa) first established itself as the general designation for the Eucharistic Sacrifice in the West after the time of Pope Gregory the Great, the early Church having used the expression the breaking of bread (fractio panis) or… …
34Calvin Coolidge — Pour les articles homonymes, voir Coolidge. Calvin Coolidge Mandats …
35Joseph Priestley — Pour les articles homonymes, voir Priestley. Joseph Priestley Portrait de Priestley par Ozias Humphrey …
36Baptism — • One of the Seven Sacraments of the Christian Church; frequently called the first sacrament , the door of the sacraments , and the door of the Church Catholic Encyclopedia. Kevin Knight. 2006. Baptism Baptism …
37Ruthenium — (pronEng|ruːˈθiːniəm) is a chemical element that has the symbol Ru and atomic number 44. A rare transition metal of the platinum group of the periodic table, ruthenium is found associated with platinum ores and used as a catalyst in some platinum …
38Mitch Richmond — Pour les articles homonymes, voir Richmond. Mitch Richmond …
39Ambiguity — Sir John Tenniel s illustration of the Caterpillar for Lewis Carroll s Alice s Adventures in Wonderland is noted for its ambiguous central figure, whose head can be viewed as being a human male s face with a pointed nose and pointy chin or being… …
40Compounds of zinc — are chemical compounds containing the element zinc which is a member of the group 12 of the periodic table. The oxidation state of most compounds is the group oxidation state of +2. Zinc may be classified as a post transition main group element… …
