Melting Point, Atomic Radius, and Ionisation Energy (HSC SSCE Chemistry): Flashcards
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Periodicity definition
Periodicity definition
Regular, repeating pattern of element properties
Chemist who developed periodic law (1869)
Chemist who developed periodic law (1869)
Dmitri Mendeleev
Atomic radius trend across period (L to R)
Atomic radius trend across period (L to R)
Decreases
Atomic radius trend down group
Atomic radius trend down group
Increases
Screening/shielding effect
Screening/shielding effect
Inner e⁻ partially block nuclear charge from outer e⁻
First ionisation energy ()
First ionisation energy ()
Energy to remove 1 e⁻ from neutral gaseous atom
Ionisation energy trend across period
Ionisation energy trend across period
Increases left to right
Ionisation energy trend down group
Ionisation energy trend down group
Decreases top to bottom
Noble gas ionisation energies
Noble gas ionisation energies
Maximum/highest (very stable configuration)
Elements with minimum melting points
Elements with minimum melting points
Noble gases