第 1 單元，第 4 課
Molecular Structure分子結構
點卡片翻面。
1 / 16
- molecule分子A molecule of oxygen has two atoms.
- diatomic molecule雙原子分子N₂ is a diatomic molecule.
- extended structure延伸結構Copper has an extended structure.
- metal金屬Wires are made of a metal such as copper.
- nonmetal非金屬Sulfur is a nonmetal.
- malleable有延展性的Gold is malleable enough to beat into thin sheets.
- brittle易碎的Salt crystals are brittle.
- conductor導體Metals are good conductors.
- ionic compound離子化合物Table salt is an ionic compound.
- covalent compound共價化合物Sugar is a covalent compound.
- polar極性的Water is polar.
- nonpolar非極性的Oil is nonpolar, so it floats apart from water.
- dissolve溶解Sugar dissolves in hot tea.
- crystal晶體A snowflake is a crystal.
- graphite石墨Pencil lead is made of graphite.
- diamond鑽石Diamond is the hardest natural material.
這課的重點字
- molecule分子
- diatomic molecule雙原子分子
- extended structure延伸結構
- metal金屬
- nonmetal非金屬
- malleable有延展性的
- brittle易碎的
- conductor導體