Bonding, structure and matter Flashcards
What is an ionic compound
A giant structure of ions
Ionic bonding
Form between metals and non-metals
Involves the transfer of electrons in the outer shell
How does ionic bonding work
Metals lose electrons to become positively charged ions and non-metals gain electrons to become negatively charged ions
Covalent bonding
Between non-metals and non-metals
Atoms which share electrons
Dot and cross diagrams
What are ionic compounds held together by
Ionic compounds are held together by strong electrostatic forces of attraction between oppositely charges ions. These
forces act in all directions in the lattice – this is called ionic bonding
Metallic bonding
Atoms which share delocalised electrons
What type of bonding occurs in alloys?
Metallic
What electronic structure do the ions produced by metals in
Groups 1 and 2 and the non-metals in Groups 6 and 7 have?
Electronic structure of a noble gas
Why is the ball and stick model not an accurate representation of
the structure of an ionic compound?
Does not accurately depict the millions of ions in the lattice