Chapter 2 Atoms, Ions and electrons Flashcards
1
Q
What is the relative atomic mass? (Ar)
A
It is the weighted mean mass of an atom of an element compared to 1/12th of the mass of an atom of carbon-12.
2
Q
What is the relative isotopic mass?
A
Is the mass of an atom of an isotope, compared to 1/12th of the mass of an atom of carbon-12
3
Q
What are the ions for these molecules:
-Hydroxide
-Nitrate
-Ammonium
-Sulfate
-Carbonate
A
OH-
NO3-
NH4+
SO4 2-
CO3 2-
4
Q
A