| Date | November 2010 | Marks available | 1 | Reference code | 10N.1.hl.TZ0.5 |
| Level | HL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
The graph below shows the first four ionization energies of four elements A, B, C and D (the letters are not their chemical symbols). Which element is magnesium?

Markscheme
B
Examiners report
[N/A]
