Relative atomic mass Flashcards
1
Q
What is the definition of relative atomic mass?
A
The average mass of all the isotopes of that element
2
Q
What is the symbol for relative formula mass?
A
Mr
3
Q
How do you find the relative formula mass of a compound?
A
Write down how many atoms of each element there are, and their relative atomic masses.
Multiply the numbers of atoms of each element by their relative atomic mass.
Add all the values together
4
Q
What is the symbol for relative atomic mass?
A
Ar
5
Q
What is the equation for relative atomic mass?
A
Sum of isotope abundance x Isotope mass / sum of abundance of all isotopes (or 100)
