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Topic 4: Chemical bonding
4. Continues
8. What occurs as a molecule of bromine separates into two bromine atoms?
1) Energy would be absorbed as a bond is broken 3) Energy would be released as a bond is broken
2) Energy would be absorbed as a bond is formed 4) Energy would be released as a bond is formed
9. When two fluorine atoms combined to form a molecule of fluorine, energy is
1) Always absorbed 3) Sometimes absorbed
2) Always released 4) Sometimes released
10. When a molecule of water is formed from oxygen and hydrogen atoms,
1) A bond will be formed, and energy will be absorbed
2) A bond will be broken, and energy will be absorbed
Teacher Preview Copy
Teacher Preview Copy
3) A bond will be formed, and energy will be released
4) A bond will be broken, and energy will be released
5. Ionic bonding: Recalling concept facts and definition
1. Ionic bonding usually occurred between the atoms of
1) A metal and another metal
3) A metal and a nonmetal
2) A nonmetal and another nonmetal 4) Two of the same metalloid
2. When combining with nonmetallic atoms, metallic atoms generally
1) Lose electrons and form negative ions 3) Gain electrons and form negative ions
4) Gain electrons and form positive ions
2) Lose electrons and form positive ions
3. When combining with a metallic atom, a nonmetallic atom tends to
1) Lose electrons and forms a negative ion 3) Gain electrons and forms a negative ion
1) Lose electrons and forms a positive ion 4) Gain electrons and forms a positive ion
4. When two atoms form an ionic bond, the electronegativity difference between these two atoms is
generally
1) Greater than 1.7 3) Exactly zero
2) Less than 1.7 4) Less than Zero
5. In ionic bonding, electrons are
1) Always shared between a metal and a nonmetal atoms
2) Always shared between two different nonmetals atoms
3) Always transferred from a metal atom to a nonmetal atom
4) Always transferred from a nonmetal atom to a metal atom
6. Ionic bonding is formed when
1) A Nonmetal loses electrons to a metal, which gains the electrons
2) A Nonmetal loses electrons another nonmetal, which gains the electron
3) A Metal atom loses electrons to a another metal, which gains the electrons
4) A Metal atom loses electrons to a nonmetal, which gains the electrons
7. Which is true of a metallic atom in ionic bond with a nonmetal atom?
1) The metal is usually a positive charged ion, because it had loss electrons
2) The metal is usually a positive charged ion, because it had gained electrons
3) The metal is usually a negative charged ion, because it had loss electrons
4) The metal is usually a negative charged ion, because it had gained electrons
8. When a nonmetal atom forms ionic bond with a metal, the nonmetal becomes a
1) A positive ion, because it had gained electrons
2) A positive ion, because it had gained protons
3) A negative ion, because it had gained electrons
4) A negative ion, because it had gained protons.
186 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic 4: Chemical bonding
4. Continues
8. What occurs as a molecule of bromine separates into two bromine atoms?
1) Energy would be absorbed as a bond is broken 3) Energy would be released as a bond is broken
2) Energy would be absorbed as a bond is formed 4) Energy would be released as a bond is formed
9. When two fluorine atoms combined to form a molecule of fluorine, energy is
1) Always absorbed 3) Sometimes absorbed
2) Always released 4) Sometimes released
10. When a molecule of water is formed from oxygen and hydrogen atoms,
1) A bond will be formed, and energy will be absorbed
2) A bond will be broken, and energy will be absorbed
Teacher Preview Copy
Teacher Preview Copy
3) A bond will be formed, and energy will be released
4) A bond will be broken, and energy will be released
5. Ionic bonding: Recalling concept facts and definition
1. Ionic bonding usually occurred between the atoms of
1) A metal and another metal
3) A metal and a nonmetal
2) A nonmetal and another nonmetal 4) Two of the same metalloid
2. When combining with nonmetallic atoms, metallic atoms generally
1) Lose electrons and form negative ions 3) Gain electrons and form negative ions
4) Gain electrons and form positive ions
2) Lose electrons and form positive ions
3. When combining with a metallic atom, a nonmetallic atom tends to
1) Lose electrons and forms a negative ion 3) Gain electrons and forms a negative ion
1) Lose electrons and forms a positive ion 4) Gain electrons and forms a positive ion
4. When two atoms form an ionic bond, the electronegativity difference between these two atoms is
generally
1) Greater than 1.7 3) Exactly zero
2) Less than 1.7 4) Less than Zero
5. In ionic bonding, electrons are
1) Always shared between a metal and a nonmetal atoms
2) Always shared between two different nonmetals atoms
3) Always transferred from a metal atom to a nonmetal atom
4) Always transferred from a nonmetal atom to a metal atom
6. Ionic bonding is formed when
1) A Nonmetal loses electrons to a metal, which gains the electrons
2) A Nonmetal loses electrons another nonmetal, which gains the electron
3) A Metal atom loses electrons to a another metal, which gains the electrons
4) A Metal atom loses electrons to a nonmetal, which gains the electrons
7. Which is true of a metallic atom in ionic bond with a nonmetal atom?
1) The metal is usually a positive charged ion, because it had loss electrons
2) The metal is usually a positive charged ion, because it had gained electrons
3) The metal is usually a negative charged ion, because it had loss electrons
4) The metal is usually a negative charged ion, because it had gained electrons
8. When a nonmetal atom forms ionic bond with a metal, the nonmetal becomes a
1) A positive ion, because it had gained electrons
2) A positive ion, because it had gained protons
3) A negative ion, because it had gained electrons
4) A negative ion, because it had gained protons.
186 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
