Karteikarten
Mettalic Bonding
Karten in diesem Stapel (8)
- 1Define metallic bondingThe electrostatic attraction between positive ions and a sea of delocalised electrons
- 2Describe how metallic bonding takes placeThe outermost electrons of a metal atom are delocalised. This leaves a positive metal cation (e.g. Na⁺, Mg²⁺, Al³⁺)
- 3Name the structure in which metal elements existGiant metallic lattice structures
- 4Describe the properties of giant metallic lattice structuresMalleable and ductile (can be shaped/drawn into a wire)
Good thermal and electrical conductor
Insoluble (EXCEPT in liquid metals)
Number of delocalised electrons per atom affects melting and boiling point - 5Why are metals malleable and ductile?No bonds hold specific ions together - metal ions can slide over each other when the structure is pulled
- 6Why are metals good thermal/electrical conductor?THERMAL
Delocalised electrons can pass kinetic energy
ELECTRICAL
Delocalised electrons can carry a current - 7What happens to the melting/boiling point as the number of delocalised electrons increase?The more delocalised electrons there are, the stronger the bonding will be and the higher the melting/boiling point
- 8TRUE OR FALSE: The size of the metal ion and lattice structure affects melting/boiling pointTRUE
A smaller ionic radius will hold the delocalised electrons closer to the nuclei
Informationen
- Beschreibung
- Der Nutzer hat seine Fachbereichs-Information gelöscht. Karteikarten am Mettalic Bonding, erstellt von Gelöschter Nutzer am 05/03/2018.
- Erstellt von
- Gelöschter Nutzer · Mär 2018
- Aktualisiert
- 5 Mär 2018
- Aufrufe
- 17
- Verlauf
-
- Erstellt von Yinka F · 3 Mär 2018
- Kopiert von Yinka F · 5 Mär 2018
- Bewertung