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8 periodicity
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Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (5)
#1
Front (Question)
what happens to atomic radius across period 3?
Back (Answer)
decreases
#2
Front (Question)
what happens to 1st ionisation energy across period 3?
Back (Answer)
generally increases
#3
Front (Question)
why does atomic radius decrease down a group?
Back (Answer)
nuclear charge increases but shielding stays similar
#4
Front (Question)
why does 1st ionisation energy generally increase across period 3?
Back (Answer)
nuclear charge increases atomic radius decreases stronger attractive forces between the nucleus and outer electrons
#5
Front (Question)
what happens to melting point across period 3?
Back (Answer)
no trend