ionic bonds Flashcards
1
Q
How do ionic bonds form?
A
They form when electrons are transferred between elements.
2
Q
What are some properties of ionic compounds?
A
- Very strong but brittle
- Solids at room temp
- Conduct electricity when liquid & gaseous
- High melting/boiling point
- Composed of metals and nonmetals
3
Q
How many atoms are in 4Al2(SO3)3
A
56 atoms
4
Q
What is the octet rule?
A
Atoms will gain or lose enough electrons to become isoelectronic with a noble gas
5
Q
Describe how elements follow the octet rule?
A
They will gain or lose electrons to reach a charge of 0, or reach 8 valence electrons
6
Q
Which group of elements are the most reactive metals?
A
Alkali Metals
7
Q
Which group of elements are the most reactive nonmetals?
A
Halogens
8
Q
Describe the differences between cations and anions
A
Cations:
* Positively charged
* Smaller
* Metals
Anions:
* Negatively charged
* Larger
* Nonmetals
