CHEMICAL BONDS - Ionic Chapter 18
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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?
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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
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