Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

Fig. 1.1 presents part of the Periodic Table. Use only the elements shown in Fig. 1.1 to answer the questions below. Each element symbol may be used once, more than once, or not used at all.
(a)[1]

Give the symbol of the element that makes up 78% by volume of clean, dry air.

(b)[1]

Give the symbol of the element whose atom has a complete outer electron shell.

(c)[1]

Give the symbol of the element whose atom has five occupied electron shells.

(d)[1]

Give the symbol of the element that forms an ion with a $2-$ charge.

(e)[1]

Give the symbol of the element that forms an ion which gives a green precipitate when aqueous sodium hydroxide is added.

(f)[1]

Give the symbol of the element used for food containers because it resists corrosion.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Nitrogen, N” …

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