Chapter 2.1, 2.2 Review Packet – Answer Key 2.1 The Nature of Matter Lesson Summary Atoms The atom is the basic unit of matter, made up of three subatomic particles. Protons have a positive charge and neutrons carry no charge. Strong forces bind protons and neutrons together in the nucleus.
rine molecule, there is one covalent bond. There are two covalent bonds in an oxygen molecule and three in a nitrogen molecule. Many molecules are more complex than the molecules in the figure. As you may suspect, some molecules have many covalent bonds. READING CHECK 5. Identify What type of molecule is made of only two bonded atoms? TAKE A ...
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