Module 3- Metallic Bonding Flashcards
1
Q
How does metallic bonding work??
A
The metal gives up its outer electrons to form a sea of delocalised electrons, which are attracted to the positive metal ions formed.
2
Q
Why are metals good conductors of electricity and heat??
A
They have free delocalised electrons that can carry the heat/ charge
3
Q
Why do metals get more dense as you go across the periodic table??
A
AR decreases as the number of protons and neutrons increases
4
Q
Why has magnesium got a higher boiling point than sodium??
A
It forms 2+ ions because it has two electrons in its outer shell whilst Na forms 1+ ions. Therefore there are more delocalised electrons and more positive ions attracted to eachother in Mg than in Na
