Do some particles get ionised to 2+ or higher in a mass spectrometer or do they only get ionised to 1+?
In electron impact, you would see mostly +1 charged ions. Electron impact is a &quot;harsh&quot; way of ionization. However, +1 charge is not a universal rule in MS. The state of ionization depends on the ionization source. Later in your courses you might encounter electrospray ionization. There you might have +14 charges, etc.