periodicity: definitions Flashcards

(6 cards)

1
Q

first ionisation energy

A

the energy required to remove one mole of electrons from one mole of gaseous atoms

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2
Q

[] ionisation energy

A

the energy required to remove one mole of electrons from one mole of gaseous ⁿ⁺ ions

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3
Q

periods (ptote)

A

horizontal rows of elements with similar chemical and physical properties

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4
Q

groups (ptote)

A

vertical columns of elements with similar chemical and physical properties

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5
Q

metalloids

A

elements on and around the metal/nonmetal dividing line

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6
Q

blocks (of the periodic table)

A

correspond to the shell where the outermost (highest energy) electron is found

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