E.OY Revision [2023] Flashcards
What is an isotope?
Atoms of the same element, with different mumbers of neutrons
What is the relative mass of a proton?
1
What is the relative mass of electrons?
0/very small
What is the relative mass of protons?
1
What is the charge of an electron?
-1
What is the charge of an neutron?
neutral
What is the charge of a proton?
+1/1
Why can graphite conduct electricity? [2]
It has a delocalised electron, that can carry an eletrical charge throughout the whole structure.
What is the formula of Buckminsterfullerene?
C10
C20
C40
C50
C60
C70
C80
C90
Answer: C60
What are Alloys? And why are they harder than pure metals?
Alloy-mixtures of metal, with other elements (normally metals).
- Because different size atoms distort the layers, this means they can’t slide over each other.
-Therefore, this is why alloys are harder than pure metals.