| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.hl.TZ1.5 |
| Level | HL | Paper | 1 | Time zone | TZ1 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
The first ionization energies (in \({\text{kJmo}}{{\text{l}}^{ - 1}}\)) of five successive elements in the periodic table are:
1314, 1681, 2081, 496 and 738
What could these elements be?
A. d-block elements
B. The last two elements of one period and the first three elements of the next period
C. The last three elements of one period and the first two elements of the next period
D. The last five elements of a period
Markscheme
C
Examiners report
[N/A]
