CH 2 - Atomic Structure and Interatomic Bonding Flashcards
1
Q
What creates an ionic bond?
A
transferring of electrons, usually between a metal and a non-metal
2
Q
Do ionic bonds require a large or small difference in electronegativity?
A
large difference required
3
Q
What creates a covalent bond?
A
Sharing of electrons between two atoms
4
Q
Do covalent bonds require a large or small difference in electronegativity?
A
small difference, electronegativities are comparable
5
Q
What is mixed bonding?
A
- combination of ionic and covalent bonds
- % ionic character depends on relative positions of the atoms in periodic table
6
Q
What is metallic bonding?
A
- valence e- not bound to any particular atom
- delocalized as e- cloud
- excellent conductors of heat and electricity
7
Q
What is secondary or van der Waals bonding?
A
arises from coulombic interaction between dipoles
