atomic structure and isotopes

how can the percentage abundances of the isotopes in a sample of an element be found experimentally

mass spectrometer

what are negative ions called

anions

what are positive ions called

cations

what does weighted mean take into account

percentage abundance and relative isotopic mass of each isotope

what is relative atomic mass

the weighted mean mass of an element relative to 1/12 th of the mass of carbon 12

what is the relative isotopic mass

mass of an isotope relative to 1/12th of the mass of an atom of carbon-12

what is the charge of a proton/electron

=/- 1.602×10 to the -19

what is the mass of a proton and neutron

1.675×10 to the -27

what is the mass of an electron

1/1836

what is the relative atomic mass of a substance

the WEIGHTED MEAN of an atom of an element to 1/12 th of the mass of carbon 12

what is the relative mass of a proton, neutron and electron

1, 1, and 1/1840

what letter is atomic number represented by

z

what letter is mass number represented by

a