Chemistry · Oct / Nov 2020 · Paper 42 · Question 1
0620
As printed in the paper
The question as text
The electronic structures of some atoms and ions are shown. A B C D F G + 2+ 3– – – H E
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)(i)[2]
A (1)
H (1)
1(a)(ii)[1]
B
1(a)(iii)[1]
D
1(a)(iv)[1]
C and G OR C and E
1(b)[2]
F (1)
third / outer shell is being filled before second shell is full; second shell has 6 electrons: it should have 8 electrons (1)
1(c)[1]
12
1(d)(i)[1]
H–
1(d)(ii)[1]
aluminium / Al
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.