atomic structures

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relative atomic mass
The average weighted mass of an atom for an element divided by 1/12 the mass of c 12
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relative isotopic mass
the weighted mass of an atom of an isotope divided by 1/12 the mass of a carbon atom
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relative molecular mass
the average weighted mass of a molecule for a compund divided by 1/12 the mass of c12
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atomic number
the number of protons and neutrons in a nucleus of an atom of that element
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electronegativity
a nuclei ability to attract a pair of electrons in a covalent bond
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first ionization energy
the energy required to remove 1 electron from each atom in 1 mole of an element in its gaseous state
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Isotopes
are atoms of the SAME element which have the SAME number of protons but different number of neutrons.
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1st ionisation energy
the amount of energy required per mole to REMOVE one electron from each gaseous atom to form a singly positive ion
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1st electron affinity
the energy change per mole for the ADDITION of one electron to a gaseous atom to form a singly negative ion
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Other cards in this set

Card 2

Front

the weighted mass of an atom of an isotope divided by 1/12 the mass of a carbon atom

Back

relative isotopic mass

Card 3

Front

the average weighted mass of a molecule for a compund divided by 1/12 the mass of c12

Back

Preview of the back of card 3

Card 4

Front

the number of protons and neutrons in a nucleus of an atom of that element

Back

Preview of the back of card 4

Card 5

Front

a nuclei ability to attract a pair of electrons in a covalent bond

Back

Preview of the back of card 5
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