Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table
Atomic structure and the Periodic Table — practice question
Fig. 1.1 displays part of the Periodic Table.
Use only the elements in Fig. 1.1 to answer the questions below.
Each element symbol may be used once, more than once or not at all.
Fig. 1.1 contains these element symbols arranged in groups I to VIII: Na, K, Ca, Ni, Al, P, S, Cl, Ar, Br, I, F, H.
(a(i))[1]
Give the symbol of the element that gives a lilac colour in a flame test.
(a(ii))[1]
Give the symbol of the element whose atom has only two occupied electron shells.
(a(iii))[1]
Give the symbol of the element that is a noble gas.
(a(iv))[1]
Give the symbol of the element whose ion gives a white precipitate after excess sodium hydroxide is added.
(a(v))[1]
Give the symbol of the element that forms a $2-$ ion.
(a(vi))[1]
Give the symbol of the element added to iron to produce stainless steel.
(b)[2]
Stainless steel is a mixture. State two properties of a mixture.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The symbol is $\text{K}$.” …