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Z153168

Cochranes molecular models

minit, lattices, single kit with booklet

Synonym(s):

chemistry model sets, molecular model sets

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About This Item

UNSPSC Code:
60104506
NACRES:
NB.17

description

Scale: 2 cm = 0.1 nanometer (1 Å), Minit 3 cm = 0.1 nanometer (1 Å), Orbit

feature

no. of atoms 270
no. of bonds 210

manufacturer/tradename

Cochranes 0074

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General description

An extensive model system offering 15 atomic bonding configurations in 12 colors of plastic atoms. The carbon atom is represented in nine configurations: linear, trigonal (in five angle variations), tetrahedral, octahedral, trigonal-bipyramidal. Models come in two sizes: Orbit and Minit. Spare atom centers and bonding tubes are available for all model kits.

Please see Technical Information Bulletin AL-183 for a listing of these items, available on our website at sigma-aldrich.com
Use the 8 and 12 coordinate atom centres within this set to build models of diamond, graphite, sodium chloride, 8 and 12 coordinate metals, caesium chloride, fluorite, zinc blende, wurzite, rutile and ice. Includes 5 instruction/activity booklets.

Scale: 2 cm = 0.1 nanometer (1A), Minit

ATOMS:
  • 2-prong linear: Hydrogen, white (25)
  • 3-prong 120°: Carbon, black (30), Oxygen, red (30)
  • 4-prong tetrahedral: Carbon, black (35), Oxygen, red (15), Sulfur, yellow (20), Halogen, green (10), Metal, silver (25)
  • 6-prong octahedral: Halogen, green (5), Metal, silver (15)
  • 8-prong cubic: Halogen, green (5), Metal, silver (20)
  • 12-prong: metal, silver (20)

BONDS:
  • Straw, green, 2.5 cm (80)
  • Straw, green, 1.5 cm (40)
  • Straw, white, 10 cm (10)
  • Straw, white, 3.5 cm (20)
  • Straw, mixed set/26 (1)

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Use our handy VSEPR chart to find the 3-D geometric VSEPR shapes of molecules and ions and learn about VSEPR theory and shapes.

VSEPR Chart | Valence Shell Electron Pair Repulsion Theory

Use our handy VSEPR chart to find the 3-D geometric VSEPR shapes of molecules and ions and learn about VSEPR theory and shapes.

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