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Structure 3.1 The periodic table: classification of elements
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Total cards: 8•Content version: v3•Public deck•Updated: 8/1/2026
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#1
Front (Question)
What is an alkali metal?
Back (Answer)
Elements in Group 1 (apart from H). Reactive metals + contain 1 valence electron
#2
Front (Question)
What is a halogen?
Back (Answer)
Element in Group 17. Diatomic molecules. Reactive non-metals. 7 valence electrons
#3
Front (Question)
What is a transition element?
Back (Answer)
Incomplete d shell as atoms/ions. Group 3-12 except Zinc
#4
Front (Question)
Why is Zinc not a transition metal?
Back (Answer)
Has a full d subshell at every level
#5
Front (Question)
What is a noble gas?
Back (Answer)
Group 18. Inert/unreactive. Single atoms
#6
Front (Question)
What does a period indicate?
Back (Answer)
Number of shells occupied with electrons
#7
Front (Question)
What does a group indicate?
Back (Answer)
Same number of electrons in outermost shell, subshell + orbital -> similar chemical properties
#8
Front (Question)
What is a mnemonic to remember metalloids?
Back (Answer)
Boring Silly Goats Are At The Party