EESA06H3 Chapter Notes - Chapter 5: Mass Number, Relative Atomic Mass, Covalent Bond
Document Summary
4500 kinds of minerals in the world. Only a couple hundred are common and a couple dozen form rocks. Each mineral is developed a different way. Heat,pressure. oxygen. atoms. and acid determine how minerals are formed. 230 different kinds of symmetrical atomic arrangements possible in nature. A crystalline substance is one in which the atoms are arranged in a three-dimensional. Minerals can be defined as a family of naturally occurring crystalline substances that are physically and chemically distinctive. Electrically neutral assemblies of energy and matter that we know to exist in the universe. Electrons are charged particles that flow from one place to another. The atomic number of an element is the number of protons in each atom. The atomic mass number is the number of neutrons and protons in an atom. Isotopes of an element are atoms containing different numbers of neutrons but the same number of protons. Common isotopes studied in geology: carbon, nitrogen, oxygen.
