Examlex
Crosstab queries display the results in a grid of columns and rows.
Trigonal Pyramidal
A molecular geometry where a central atom is surrounded by three atoms placed at the corners of a pyramid, with a vertex missing.
Central Atom
In a molecular structure, the atom that is bonded to several other atoms.
Equivalent Atoms
Equivalent atoms are atoms in a molecule that are indistinguishable from each other in their chemical environment, resulting in identical physical and chemical properties.
Lone Pairs
Pairs of valence electrons that are not shared with another atom and not involved in bonding in a molecule.
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