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5 Terms
Define relative atomic mass
The average weighted mass of an atom of an element compared to 1/12th of the mass of an atom of carbon-12
Define relative isotopic mass
The mass of an atom of an isotope relative to 1/12th of the mass of an atom of carbon-12
What are isotopes?
Atoms with the same number of protons but different number of electrons
What is the definition of the ionisation energy?
The energy required to remove 1 electron from each atom of 1 mole of gaseous atoms to form 1 mole of gaseous ions
What is the definition of the second ionisation energy?
The energy required to remove 1 electron from each 1⁺ ion of 1 mole of gaseous ions to form 1 mole of gaseous 2⁺ ions