Isotopes Flashcards
1
Q
Isotopes
A
atoms with the same number of protons but different number of neutrons
2
Q
Relative isotopic mass
A
the mass of an atom of isotope compared to 1/12 th of the mass of an atom of carbon -12
3
Q
Relative atomic mass
A
the weighed mean mass of an atom of an element with 1/12 of the mass of an atom of carbon -12
4
Q
Relative formula mass
A
sum of relative atomic masses of all the atoms in its formula
5
Q
Mass spectrometry
A
to measure the characteristics of molecules by converting them to ions
6
Q
explain how atoms are ionised in a mass spectrometer ?
A
beam of electrons
7
Q
how are ions accelerated in a mass spectrometer ?
A
negative charge plate
8
Q
how are the ions deflected in a mass spectrometer?
A
magnetic field
9
Q
know the blocks of the periodic table
A
s, p, d, f and g block
