Ch. 12.1 Notes---Ionic Bonding & Ionic Compounds Ionic Bonds • Form when ___________ transfer their _____________ electrons to a _______________. • The forces of attraction between the ____________ (+) and the _____________ (-) bind the compound together. How to Represent an Ionic Bond (1)Quantum Mechanics (electron configurations) : Na 1s 2 2s 2 2p 6 3s 1 Cl 1s 2 2s 2 2p 6 3s 2 3p 5 metals valence nonmetal cation anion Na… ___ ↑ Cl… ___ ___ ___ ___ ↓ ↑ ↑ ↑ ↓ ↓ ↓
20
Embed
Ch. 12.1 Notes---Ionic Bonding & Ionic Compounds Ionic Bonds Form when ___________ transfer their _____________ electrons to a _______________. The forces.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Ch. 12.1 Notes---Ionic Bonding & Ionic Compounds
Ionic Bonds
• Form when ___________ transfer their _____________ electrons to a _______________.
• The forces of attraction between the ____________ (+) and the _____________ (-) bind the compound together.
How to Represent an Ionic Bond
(1) Quantum Mechanics (electron configurations):
Na 1s2 2s2 2p6 3s1
Cl 1s2 2s2 2p6 3s2 3p5
metals valencenonmetal
cationanion
Na… ___ 3s
↑
Cl… ___ ___ ___ ___ 3s 3p
↓↑ ↑ ↑↓ ↓ ↓
How to Represent an Ionic Bond
2) Bohr Model
How to Represent an Ionic Bond
3) Electron Dot Notations:
Na + Cl [ ] [ ]
Practice Problems: (1) Draw the electron dot notation for the formation of an ionic compound between sodium and oxygen.
(2) Draw the electron configuration notation for the formation of an ionic compound between magnesium and fluorine.
Na+1 Cl -1
Valence Electrons On The Periodic Table
12 3 4 5 6 7
8
Sucktastic!Assume 2
Charges On The Periodic Table
+1+2 +3 +/-4 -3 -2 -1
0
Sucktastic!
Sodium + Chloride
Practice Problems:
3) a) Draw the electron dot notation for a potassium atom.
b) Draw the electron dot notation for a potassium ion.
(4) a) Draw the electron dot notation for a sulfur atom.
b) Draw the electron dot notation for a sulfur ion.
K
[K+1]
S
[ S -2]
Properties of Ionic Compounds and Covalent Molecules
Ionic:
•_______________ of electricity when dissolved water or melted.
•formed between __________ and _________________
•have _________ melting points
•usually ________ soluble in water
• form ___________________ solids
Conductors
metals nonmetals
high
very
crystalline
(dissolved salt)
Crystalline Patterns
Quartz• Quartz is the common mineral form of
silicon dioxide (SiO2). It is the dominant mineral in most sands and sandstones.