DP Chemistry (first assessment 2025)
Question 23M.1A.SL.TZ1.5
Date | May 2023 | Marks available | [Maximum mark: 1] | Reference code | 23M.1A.SL.TZ1.5 |
Level | SL | Paper | 1A | Time zone | TZ1 |
Command term | Question number | 5 | Adapted from | N/A |
5.
[Maximum mark: 1]
23M.1A.SL.TZ1.5
What is the maximum number of electrons in energy level n = 4?
A. 8
B. 18
C. 32
D. 50
[1]
Markscheme
C
Syllabus sections
Reactivity 1. What drives chemical reactions? » Reactivity 1.3—Energy from fuels » Reactivity 1.3.3—Fossil fuels include coal, crude oil and natural gas, which have different advantages and disadvantages. Evaluate the amount of carbon dioxide added to the atmosphere when different fuels burn. Understand the link between carbon dioxide levels and the greenhouse effect.