Chemistry Chapter 9 Section 1

Chemistry Chapter 9 Section 1

Multiple Choice

Who created the original and most common scale which uses a 4.0 for Fluorine the most electronegative element as the standard?

• American Chemist Lucy Paulos

• American Chemist Linus Pauling

• American Chemist Lucius Pauley

• French Chemist Linais Pauleiene

Multiple Choice

What is a measure of the ability of an atom in a bond to attract electrons?

• radioactivity

• reactivity

• conductivity

• electronegativity

Multiple Choice

Which is more true?

• Some bonds are covalent.

• Some bonds are ionic.

• All bonds involve some degree of sharing.

• All bonds are either totally ionic or totally covalent.

Multiple Choice

What is the general trend for electronegativity going from left to right on the periodic table?

• increased number

• decreased number

• similar number

Multiple Choice

Which explains why the electronegativity increases going left to right in a period ?

•

• There are more neutrons the further right you go.

• There are more protons the further right you go.

• There are more electrons the further right you go.

Multiple Choice

Which correctly describes shielding effect?

• Valence electrons are attracted to nucleus and shielded by more energy levels.

• Valence electrons are attracted to more energy levels and shielded by the nucleus

Multiple Choice

What happens to electronegativity numbers going down a group?

• increase

• decrease

• stay the same

Multiple Choice

What would result from bonding Potassium and Fluorine?

• difference 3.2, ionic bond

• difference 2.2, ionic bond

• difference 0.6 weaker polar covalent bond

• difference 1.0, very covalent bond

Multiple Choice

What would result from bonding chlorine and chlorine?

• difference 0

• bond nonpolar covalent

• diatomic molecule

• all of the above

Multiple Select

range of electronegativity numbers for ionic bond

• 1.5 to 2.0

• 0 to 1.49

• 2.0 and greater

• 0.5 to 1.0

Multiple Choice

What can be modeled as a game of tug-a-war that neither side is winning?

• an ionic bond

• a covalent bond

• a metallic bond

• a polar covalent

Multiple Choice

What can be modeled by a tug-a-war between a 300 pound sumo wrestler and a 400 pound sumo wrestler?

• a nonpolar molecule

• negative ion

• positive ion

• A polar molecule

Multiple Choice

•Metallic bonds result in a _________________ for all the metal atoms.

• shared pool of valence electrons

• total transfer of all ectrons

• combined sharing and transferring of electrons