CHEMICAL BONDS - Ionic

Chapter 18

18 BONDING - journal

1. Begin filling in the table on the top of the Bonding Basics – Ionic Bonding Worksheet.

18 BONDING

Chemical PROPERTIES depend on the number of valence electrons.

18 BONDING

Therefore, chemical bonding and reactivity depend on an element’s electron configuration.

18 BONDING

STABLE ELECTRON CONFIGURATION:

Which group does this describe?

18 BONDING

What do elements with UNSTABLE ELECTRON CONFIGURATIONS do?

18 BONDING

They BOND and form compounds

IONIC BONDING

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer

Both Sodium and Chlorine are now STABLE in their highest energy levels

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer

What types of elements are Sodium and Chlorine?

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal.

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal.

When an atom gains or loses electrons, what does it get?

A CHARGE.

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal

ION: An atom with a positive or negative CHARGE from electron transfer.

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal

In the bond, one becomes positive (loses electrons) and one becomes negative (gains

electrons).

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal

Positive Ion (loses electrons): Cation

Negative Ion (gains electrons): Anion

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal

WHAT DO OPPOSITE CHARGES DO?

18 BONDING

IONIC BONDING – the forming of a stable electron configuration through electron

transfer between a metal and a nonmetal

ATTRACT.

This is when the IONIC BOND forms.

18 BONDING

HOW can you predict which elements will make positive cations and which will make

negative anions?

18 IONIC BONDING

Ionization Energy: the ability to PULL ON ELECTRONS.

Which side has the MOST PULL?

Which side GIVES UP electrons more easily?

Look at “Data Analysis” at the top of page

160.

18 IONIC BONDING

Ionization Energy: the ability to PULL ON ELECTRONS.

Take out your Periodic Table.

Predict the OXIDATION NUMBERS (charges) of the ions for A Groups

18 IONIC BONDING

PROPERTIES OF IONIC COMPOUNDS

1. Form between a metal and a nonmetal

2. Brittle/crystalline

3. High melting/boiling points

4. Dissolve (ions come apart) in water & conduct electricity

18 IONIC BONDING

NAMING IONIC COMPOUNDS

1. NaCl – Sodium Chloride

2. HF – Hydrogen Fluoride

3. MgI2 – Magnesium Iodide

4. KBr - ???

Potassium Bromide

This is Binary Nomenclature

Ionic Bonding Challenge

18 IONIC BONDING

NAMING COMPOUNDS WITH POLYATOMIC IONS

1. CaCO3 1. Calcium carbonate

2. HNO3

1. Hydrogen nitrate (nitric acid)

3. NH4Cl 1. Ammonium chloride

4. NaOH 1. Sodium hydroxide

18 IONIC BONDING

18 IONIC BONDING – Journal 2

Ionization Energy: the ability to PULL ON ELECTRONS.

FOLLOW THE DIRECTIONS AT THE TOP OF THE BLANK PERIODIC TABLE FROM THE BACK OF THE

ROOM.

18 BONDING – Journal 2

Define ionic bond

Define ionization energy

Take out your Ionic Bonding basics worksheet and make sure you have a Lewis Dot for each element on the page, front and back

Begin filling out the Covalent Bonding Basics Table