Molecular Models MMM-VA646 91-Piece VSEPR Theory Advanced Molecular Models Set

The Molecular Models MMM-VA646 VSEPR theory advanced molecular models set includes 72 color-coded plastic atom parts, 19 lone pairs, and a storage box. This model set allows instructors in grades 7 through university to demonstrate the predicted structure of molecules according to valence-shell electron-pair repulsion (VSEPR) theory, and provides students with a hands-on activity to model a variety of geometric molecular shapes. The atom parts, preconfigured atom/bond pairs, and lone pairs for assembling models are made from durable plastic and easy to identify by standard color-coding. Atom parts measure 9mm in diameter and represent carbon, oxygen, hydrogen, chlorine, sulfur, nitrogen, phosphorus, metal, bromine, iodine, and fluorine. It comes with 19 lone pairs, a storage box, and instructions. Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology.Molecular Models Company manufactures molecular models for science education. Founded in 1967, the company is headquartered in Beloit, WI.What's in the Box?(3) Black 9mm carbon atom parts: (2) linear, (1) tetrahedral(7) Red 9mm oxygen atom parts: (1) trigonal, (1) tetrahedral, (5) monovalent preconfigured atom/bond pairs(7) Dark green 9mm chlorine atom parts: (5) monovalent preconfigured atom/bond pairs, (1) tetrahedral, (1) trigonal bipyramidal(2) Yellow 9mm sulfur atom parts: (1) trigonal, (1) octahedral(2) Blue 9mm nitrogen atom parts: (1) tetrahedral, (1) monovalent preconfigured atom/bond pair(2) Purple 9mm trigonal bipyramidal phosphorus atom parts(2) Silver 9mm metal atom parts: (1) trigonal bipyramidal, (1) octahedral(1) Brown 9mm octahedral bromine atom part(1) Orange 9mm pentagonal dipyramidal iodine atom part(13) White 9mm monovalent preconfigured hydrogen atom/bond pairs(31) Light green 9mm monovalent preconfigured fluorine atom/bond pairs(1) Tan 9mm trigonal planar atom part(19) Tan lone pairsStorage boxInstructions