Topic 2: Bonding Flashcards
What is an ion?
A charged particle formed when an atom gains or looses an electron
What is a molecular ion?
A charged particle containing more than one atom
What is a cation?
A positively charged ion?
What is an anion?
A negatively charged ion
Ionic bonding is typical in…
Metals and non-metals
How are ionic bonds represented?
Using a dot a cross diagram
What is an ionic bond?
The attraction between two oppositely charged ions
Are ionic bonds strong or weak?
Strong
Describe the melting/boiling point of ionic bonds
They have a heigh melting and boiling point becuase a substantial amount of heat energy is retired to break the strong bonds
What is a single covalent bond?
A shared pair of electrons
Covalent bonding is typical in…
Non-metals
What is a molecule?
Two or more atoms covalently bonded together
What does diatomic mean?
Two atoms covalently bonded together in a molecule
Are covalent bonds strong or weak?
Strong
Describe the melting/boiling point of covalent bonds
They have high melting and boiling points because they require substantial amount of heat energy to break the strong bonds
How is a single covalent bond represented, when a structural formula is shown?
By a line
What is a metallic bond?
This is the result of the attraction between the positive ions in a regular lattice a the delocalised electrons
Describe the melting/boiling point of metallic bonds
They have a high melting and boiling point as there is a substantial amount of heat energy required to break the strong metallic bonds
Explain why metals can conduct electricity
The metals can conduct electricity because of the many delocalised electrons which are free to move and carry a charge
