Metallic Bonds Flashcards
1
Q
where do metallic bonds occur
A
between metal atoms
2
Q
what happens in a metallic bond
A
metal nuclei are packed together with the valence electrons that are free to move among all the nuclei. These free valence electrons hold the metallic structure together.
3
Q
what are some properties of a metallic compound
A
- Metalscanconduct electricity welldue to their sea of delocalised electrons that are free to move.
- Metalsconduct heat wellbecause the nuclei are packed together closely, allowing energy to be transferred easily.
- Metalsaredense because of the tightly-packed nuclei.
- Metalsmostly havehigh melting pointsbecause the nuclei that are tightly packed together indicate strong forces between the nuclei, making us need more energy to overcome the forces between the particles
4
Q
what are the valance electrons
A
these are the electrons in the outermost electron shell of an atom.
5
Q
these are the electrons in the outermost electron shell of an atom.
A
Groups 1 - 3have thesame number that corresponds to the group number
Group 13 have3 valence electrons
Group 14has4 valence electrons
Group 15has5 valence electrons.
