Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table
Atomic structure and the Periodic Table — practice question
The diagram displays part of the Periodic Table.
Answer the following questions using only the symbols of the elements shown in the diagram. Each symbol may be used once, more than once, or not at all.
(a)[1]
State the symbol of the element obtained from bauxite.
(b)[1]
State the symbol of the element that makes up 21% of clean, dry air.
(c)[1]
State the symbol of the element that forms an oxide contributing to acid rain.
(d)[1]
State the symbol of the element that forms an aqueous ion which gives a red-brown precipitate when aqueous sodium hydroxide is added.
(e)[1]
State the symbol of the element whose atom has a complete outer electron shell.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Al” …