Relative Formula Mass Flashcards
1
Q
What is the relative formula mass
A
Is the sum of the relative atomic masses of the atoms in the numbers shown in the formula
2
Q
What is the relative atomic mass on the periodic table
A
It’s the mass number
3
Q
How do you work out the percentage mass of an element in a compound
A
Atomic mass x number of atoms of that element
Divided by mr of the compound
Times by 100
4
Q
What is the symbol for relative atomic mass
A
A (little) r
5
Q
What is the symbol for relative formula mass
A
M (little r)
