Atomic Structure And Analysis Flashcards
1
Q
What is an isotope?
A
Element with the same sumner of protons but different number of neutrons
2
Q
How do you find how many neutrons there are?
A
Mass number - proton (atomic) number
3
Q
How do you find relative formula mass?
A
It is mr
It’s the mass of the element found on the periodic table
If you have multiple elements e.g. CO, you add together the masses
12+16= 28
4
Q
How do you find how many moles something has?
A
Mass divided by MR…
5
Q
What is paper chromatography?
A
Used to analyse coloured substances
Shows substances are likely to be the same if they are the same colour
