Ionic bonding Flashcards
What is the definition of an ionic bond
An electrostatic force of attraction between positively charged ions and negatively charged ions.
What is a crystal lattice
The arrangement of ions in a solid compound
Draw sodium as a positive ion
Step 1. —. 2 el
Step 2. —. 8 el
Step 3. —. Brackets
Step 4. —. +
What is an electrostatic force
When oppositely charged ions are attracted to eachother.
Finish the sentence.
Overall a compound must have …
Overall a compound must have … No charge. This means ion charges must cancel each other out.
Draw silicon and chlorine and show the ionic ratio. E.g 1:1
Cl : Si
4. : 1
What is the general ion-electron equation for a metal atom
Atom -> positive ion + electron
What is the general ion-electron equation for a non-metal atom
Non metal + electron -> negative ion
Draw the ion-electron equation for group 7
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Draw the ion-electron equation for group 5
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Draw the ion-electron equation for group 1
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Draw the ion-electron equation for group 3
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Draw sodium chloride as an ionic bond. Remember dots and crosses
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Name 4 key properties of an ionic compound
- Most ions are colourless. But when both are colourless and in a compound it will look white
- When white compounds dissolve in water the solution will look white
- Because ions are very strong they have high melting + boiling points.
- When Lattice dissolved the ions become free
- Ionic lattice hold millions of ions
Ionic bonds are in ____ structure with ____ ratio
Lattice structure
1:1 ratio
