(d) carbon monoxide
5. Which of the following gases can lead to the death of a person?
(a) carbon dioxide 0 (b) hydrogen
(c) oxygen
ñ Firefighting operations work on the principle of

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.