A Group 7 atom has [ ] outer-shell electrons and tends to gain one electron to form a [ ] ion.
A
A Group 7 atom has eight outer-shell electrons and tends to gain one electron to form a 1− ion.
B
A Group 7 atom has seven outer-shell electrons and tends to gain one electron to form a 2− ion.
C
A Group 7 atom has seven outer-shell electrons and tends to gain one electron to form a 1− ion.
D
A Group 7 atom has six outer-shell electrons and tends to gain one electron to form a 1− ion.
The elements of Group 7 Flashcards
Flashcards for Edexcel A Level Chemistry The elements of Group 7, covering the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3. 26 cards, matched to the Edexcel A Level Chemistry (9CH0) specification.