Cochranes 分子模型

NB.17

一种以12色塑料原子提供15种原子键配置的广泛模型系统。 碳原子以九种构型表示：线性、三角形(五种角度变化)、四面体、八面体、三角-双锥体。模型有两种尺寸：Orbit和Minit。备用原子中心和键合管可用于所有模型套件。

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Study the structures of diamond, graphite, metals (iron, copper & magnesium), sodium chloride, zinc blende, wurzite, caesium chloride, rutile, ice, orthoboric acid, cadmium chloride and cadmium iodide. Make sizeable models of up to 100 atoms in each or multiple smaller models. Includes 5 instruction/activity booklets.

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

ATOMS:

• 2-prong linear: Hydrogen, white (125)
• 2-prong 155°: Oxygen, red (30)
• 2-prong 141°: Oxygen, red (30)
• 3-prong 120°: Carbon, black (150), Oxygen, red (150)
• 3-prong 90°, 135°: Oxygen, red (30)
• 4-prong 141°, 116°: Oxygen, red (30)
• 4-prong tetrahedral: Carbon, black (175), Oxygen, red (75), Sulfur, yellow (100), Halogen, green (50), Metal, silver (125)
• 6-prong octahedral: Halogen, green (100), Metal, silver (75)
• 8-prong cubic: Halogen, green (25), Metal, silver (100)
• 12-prong: Metal, silver (100)

BONDS:

• Straw, green, 2.5 cm (640)
• Straw, green, 1.5 cm (320)
• Straw, white, 10 cm (35)
• Straw, white, 3.5 cm (160)
• Straw, mixed set/26 (5)

no. of atoms 1,470
no. of bonds 1160

Cochranes 0077

2 cm = 0.1 nanometer (1 ?), Minit
3 cm = 0.1 nanometer (1 ?), Orbit