Tellurium has a higher relative atomic mass than iodine, but iodine is placed after tellurium in the modern periodic table. Which statement explains why?
Tellurium atoms contain more electrons on average than iodine atoms do
Tellurium atoms contain more neutrons on average than iodine atoms do
Tellurium atoms contain more protons on average than iodine atoms do
Tellurium atoms contain more shells on average than iodine atoms do
40 exam-style questions on AQA GCSE Chemistry 1.2 The periodic table, covering 1.2.1 The periodic table, 1.2.2 Development of the periodic table, 1.2.3 Metals and non-metals, 1.2.4 Group 0, 1.2.5 Group 1, and 1.2.6 Group 7. Each one has a worked solution and a mark scheme showing where the marks go.