1.0 Flashcards
Define metallic bonding
The sharing of free electrons among a structure of positively charged ions
Which materials need to be bonded metallically
Metal ions
How does the number of delocalised electrons affect the melting point of a metal
The greater the number of electrons involved with delocalisation with a singular metal ion the greater the melting point
Why does the number of delocalised electrons affect the melting point
The more delocalised electrons the greater the electromagnetic force between the metal ion and the electron
This means more energy is required to break the bonds between the ions
List three properties of metals
Ductile
High m.p
High b.p
Define ionic bonding
Electrostatic attraction between oppositely charged ions in a chemical compound
What type of elements are involved in ionic bonding
Non-metal + metal
What is the name of the term used to refer to the loss of an electron
Oxidation
What is the term used to describe the gain of electrons
Reduction
What does the number of electrons lost/gained show
The oxidation/reduction level of an element
Define an element
One type of atom
Define covalent bonding
The mutual sharing of one or a pair of electrons between atoms
What type of elements are involved in covalent bonding
Non-metals
How does covalent bonding happen
Both elements share either a pair or a singular electron in order to fill their outermost shells
Define a dative bond
The bonded pair of electrons come from only one of the two atoms
