Ionic Bonding Part II

Review Questions

Multiple Choice

What is the charge when Oxygen becomes an ion (anion)?

• +3

• -2

• -3

• +2

Multiple Choice

What is the correct formula for Beryllium and Nitrogen?

• Be₂N₃

• Be₃N₂

• BeN

• NBe

Multiple Choice

What is the formula for ammonium carbonate?

• (NH₄)₂CO₃

• NH₄CO₃

• NH₄(CO₃)₂

Draw

Draw the Lewis dot structure for Oxygen.

Ionic Bonds Part 2
1. Transition Metal Oxidation States
2. Transition Metal and Chemical Formulas
2. Naming ionic compounds
3. Metallic Bonds

Transition Metals Oxidation States

​Transition Metals have more than one oxidation state

• The energy levels of the s shell and d shells are almost the same.

• Transition metals can lose electrons from either the s or the d shell.

  • resulting in different oxidation numbers

Multiple Choice

Transition metals can have different oxidation states (charges) due to the borrowing from either the ....

• S or D shells

• the S or P shells

• the P or D shells

Naming Ionic Compounds

​Ions classifies names of ionic compounds they are composed of

• Fixed charge cations

  • Use Elemental name

• Fixed charge anions

  • Add suffix "ide"

    • oxide

Naming Ionic Compounds for Transition Metals

Roman Numeral or Stock System

For atoms with more than one possible charge, a Roman numeral is used to identify which oxidation state is used in the reaction.

Copper (II) Sulfate = Cu(SO₄) versus Copper(I) Sulfate= Cu₂(SO₄)

Multiple Choice

PbS₂

• lead sulfide
• lead sulfur
• lead II sulfide
• lead IV sulfide

Multiple Choice

Fe₂O₃

• iron oxide
• iron oxygen
• iron II oxide
• iron III oxide

Metallic Bonds (metal-metal)

"Sea of electrons"

• Delocalized electrons- Electrons that are not held to one specific atom

  • Move relatively freely

    • The overlapping of the same energy shells results in each atom equally pulling on electrons, allowing electrons to float from one metal atom to another freely.
      

​Negative

​Positive

​Battery

Multiple Choice

What physical property of a material depends on the ability of electrons to move freely?

• Melting point

• Electrical Conductivity

• Solubility