2.1.1: atomic structure Flashcards
1
Q
definition of atomic number?
A
the total number of protons in an atom
2
Q
definition of mass number?
A
the total number of protons and neutrons in an atom
3
Q
definition of an isotope?
A
atoms of the same element with the same number of protons but a different number of neutrons
4
Q
definition of relative atomic/molecular mass?
A
the weighted mean mass of an atom/molecule compared to 1/12th of a carbon-12 atom
5
Q
definition of relative isotopic mass?
A
the mass of an isotope compared to 1/12th of a carbon-12 atom
