Metallic Bonding Flashcards
1
Q
What is metallic bonding?
A
Electrostatic attraction between positively charged metal ions arranged in a lattice structure with negatively charged delocalised electrons surrounding them.
2
Q
What is a latitice?
A
A regular repeating pattern.
3
Q
What does metallic bonding happen between?
A
Metal ions and electrons.
4
Q
What are 7 properties of metals?
A
- malleable (can be molded)
- ductile (can be stretched)
- strong
- high melting point
- high density
- conducts heat
- conducts electricity
5
Q
Why can metals conduct electricity?
A
Delocalised electrons.
6
Q
Why are metals ductile and malleable?
A
They contain layers which can slide, allowing the metal to be bent and stretched without breaking.
7
Q
What are 4 trends of metals in the periodic table going down a group?
A
- Strength of bond decreases
- Bonds become easier to break
- Melting points decrease
- Bonds become weaker because atoms get bigger causing metal cations and delocalized electrons to become weaker
8
Q
What are 4 trends of metals in the periodic table going across a period?
A
- Strength of metallic bond increases
- Bonds get harder to break
- Melting point increases
- Bonds get stronger because charge on metal cation increase (+1 in group 1, +2 in group 3 etc)
