Chemistry II Flashcards
1
Q
why is diamond used for cutting tools
A
Has a giant covalent structure. The bonds are extremely strong and uniform, which gives diamond its high hardness.
1
Q
why does graphite conduct electricity
A
delocalized electrons. These electrons are free to move between the layers. These extra electrons are able to move across the layers, which allows graphite to conduct electricity.
2
Q
A
3
Q
Describe the relative charge and mass of protons
A
Relative charge = +1, relative mass = 1
4
Q
Describe the relative charge and mass of neutrons
A
Relative charge = 0, relative mass = 1
5
Q
Describe the relative charge and mass of electrons
A
Relative charge = -1, relative mass = 1/2000
