Atomic Structure Definitions Flashcards

1
Q

Relative atomic mass

A

The relative atomic mass is the average mass of an atom of an element on a scale where an atom of carbon-12 is exactly 12

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2
Q

Relative isotopic mass

A

The relative isotopic mass is the mass of an atom of an isotope of an element on a scale where an atom of carbon-12 is exactly 12

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3
Q

First ionisation energy

A

The first ionisation energy is the energy needed to remove 1 electron from each atom in 1 mole of gaseous atoms to form 1 mole of gaseous +1 ions

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4
Q

Second ionisation energy

A

The second ionisation energy is the energy needed to remove an electron from each ion in 1 mole of gaseous +1 ions

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