Chemistry End of Term Flashcards
1
Q
What is Chromatography used for
A
It is used to be able to separate mixtures and be able to identify the mobile and stationary phase
2
Q
How do you calculate the Rf value
A
you divide the distance travelled by the component by the distance travelled by the solvent
3
Q
What is the atomic number
A
The number of protons
4
Q
What is the mass number
A
the number of protons + neutrons
5
Q
What is an isotope
A
A form of the same element with the same number of protons but a different amount of neutrons
