Atomic Structure Flashcards
1
Q
Relative mass of an electron?
A
1/1840
2
Q
What letters represent atomic number and mass number?
A
Z and A respectively
3
Q
Define isotope
A
Atoms with the same number of protons but different numbers of neutrons
4
Q
Isotopes and reasons for their chemical properties + physical properties?
A
similar chemical properties due to same electronic structure
different physical properties due to varying masses
5
Q
Suggest why electrospray ionisation is used instead of electron impact for the ionisation of a protein in a mass spectrometry experiment
A
Proteins don’t fragment
6
Q
Sr electron impact equation
A
Sr(g) + e- -> Sr+(g) + 2e-
