Chapter 2 Book 3 Bonding

5 Written Questions

1. a description of a covalent bond in which electrons are shared unequally, or a molecule containing polar bonds that do not cancel out
2. small positively charged particles that are found in the nucleus of an atom.
3. the electrons that are farthest away from the nucleus of an atom and are involved in chemical reactions
4. small uncharged particles that are found in the nucleus of the atom
5. The attractions between two oppositely charged ions

5 Matching Questions

1. nonpolar
2. molecular compound
3. atomic number
4. polyatomic ion
5. period

1. a elements in the same horizontal row of the periodic table
2. b the description of a covalent bond in which electrons are shared equally, or a molecule containing nonpolar bonds, or polar bonds that cancel out
3. c An ion that is made of more than one atom
4. d The number of protons in the nucleus of an atom
5. e a compound consisting of molecules of covalently bonded atoms

5 Multiple Choice Questions

1. an atom or group of atoms that has become electrically charged
   1. polar
   2. group
   3. ion
   4. period
2. a representation of the number of valence electrons in an atom, using dots placed around the symbol of the element
   1. electrons
   2. nonpolar
   3. electron dot diagram
   4. neutrons
3. an element belonging to Group 17 of the periodic table
   1. group
   2. ion
   3. halogen
   4. proton
4. an orderly, three-dimensional pattern of ions or atoms in a solid
   1. group
   2. proton
   3. crystal
   4. mineral
5. a chemical bond formed when atoms share two pairs of electrons
   1. neutrons
   2. covalent bond
   3. ionic bond
   4. double bond

5 True/False Questions

1. nucleus → the central core of the atom, containing protons and usually neutrons

   True        False

2. electrons → small uncharged particles that are found in the nucleus of the atom

   True        False

3. group → elements in the same vertical column on the period table, also called families

   True        False

4. mineral → a naturally occurring solid that has a crystal structure and a definite chemical composition

   True        False

5. family → elements in the same vertical column on the period table, also called groups

   True        False