2. Atoms, ions and compounds Flashcards
1
Q
What is an isotope?
A
Atoms of the same element which have the same number of protons but different number of neutrons
2
Q
What is the relative atomic mass?
A
The weighted mean mass of an atom of an element relative to the mass of 1/12 th of an atom of carbon 12
3
Q
What is the relative isotopic mass?
A
The mass of an atom of an isotope relative to 1/12th of the mass of an atom of carbon 12
4
Q
What is the mass of an electron?
A
1/1800
