Isotopes,RAM and other formulas Flashcards
1
Q
What are isotopes
A
The same element with the same number of protons but a different number of neutrons
2
Q
What is relative atomic mass
A
The average mass of all the isotopes of an element
3
Q
What is relative formula mass
A
A compounds atomic masses added together
4
Q
What is empirical formula
A
The smallest whole number ratio of atoms in a compound
5
Q
What is molecular formula
A
The actual number of atoms of each element in a single molecule
6
Q
How do you find molecular formula
A
1) find RFM of empirical formula
2) divide the relative molecular mass by the RFM
3) times the empirical formula by that number
