2.1.1 relative mass Flashcards
1
Q
What’s is useful for
A
Measuring the relative atomic mass (Ar) of an element
2
Q
What can it also measure of a compound
A
Relative molecular mass (Mr)
3
Q
What does it detect the mass of
A
Separate, individual atoms/molecules
4
Q
How does it ionise the sample to be tested
A
Making it positively charged (removing an electron)
5
Q
What does it produce
A
A graph/spectrum
6
Q
How do u work out relative atomic mass (Ar_
A
Total relative abundance x mass/charge of ion/100
7
Q
What do all elements have showing the relative abundances of their isotopes
A
A characteristic pattern
8
Q
What can it be used to do
A
Identify a particular element in a sample
9
Q
What carry mass spectrometers and why
A
Space probes to identify elements in rock samples in the solar system
