Bonding Flashcards
What are the three types of bonding?
Ionic, covelant and metallic
What is ionic bonding? (non-metal and metal bonding)
A strong, electrostatic attraction between oppositely charged ions. Attraction between + and -
What does the strength of an ionic bond depend on?
- the charge of the ion, the larger the charge, the stronger the bond
- the size of the ion, the smaller the ion, the stronger the bond
What are the properties of ionic compounds?
- Exist as regular arrangements of ions in a giant ionic lattice
- Have high melting and boiling points
- Conduct electricity when molten or in solution as the ions are free to move
What a covalent bonding? (between non-metals)
Strong electrostatic attraction between two nuclei and the shared pair of electrons between them
What is coordinate bonding?
were both electrons in a covalent bond come from the same atom. Usually when an element with a lone pair of electrons.
What are the properties of covalent compounds?
- Simple molecules have low melting and boiling temperatures so are usually gases or liquids
- Compounds consisting of giant molecular structures have high melting and boiling temperatures
- Covalent compounds do not conduct electricity
What is metal bonding? (between metals)
Electrostatic attraction between a giant lattice of positively charged ions and delocalised electrons
What are the properties of metals?
- The strong electrostatic forces of attraction results in metals having high melting and boiling points
- The delocalised electrons enable metals to conduct electricity in the solid state