C2.1 And C2.2 Atomic structure + Isotopes Flashcards
1
Q
Electron mass
A
1/1836
2
Q
Atomic number
A
Number of protons in an atom
3
Q
Isotopes
A
Atoms of an element with different numbers of neutrons
4
Q
Mass number
A
Number of neutrons and protons
5
Q
Cations and Anions
A
Cations = positive ions
Anions = negative ions
6
Q
Relative isotopic mass
A
Mass of an isotope relative to 1/12th of the mass of an atom of Carbon-12
7
Q
Relative atomic mass
A
Weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of Carbon 12
8
Q
Mass Spectrometer
A
Experimentally finds the percentage abundance of the isotopes in a sample of an element
