Chemistry Atomic Structure Exam Questions

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Question	Answer	Extra information
1	B [1 mark]
2	D [1 mark]
3	E [1 mark]
4	C [1 mark]
5	92.5 x 6 and 7x 7.5 [1 mark] [1 mark] 6.075 [1 mark] 6.08 [1 mark]	allow 6.08 with no working shown for 4 marks
6	any one from: heat stir [1 mark]
7	filter [1 mark]	accept use a centrifuge accept leave longer (to settle)
8	any one from: wear safety spectacles/googles wear an apron [1 mark]
9	evaporation at A [1 mark] condensation at B [1 mark]
10	100 [1 mark]
11	electrons transferred from potassium to sulfur [1 mark] two potassium atoms each lose one electron [1 mark] [1 mark] sulfur atoms gain 2 electrons [1 mark] [1 mark]
12	there are no gaps/sticks between the potassium ions and sulfide ions [1 mark]
13	[3 marks]	for every correct line [1 mark]
14	include a (filter) funnel [1 mark]	allow funnel drawn on the diagram ignore clamp stand
15	evaporate [1 mark] condense [1 mark]	must be in this order
16	nucleus [1 mark] neutron [1 mark] neutron[1 mark] electron[1 mark] proton[1 mark]	must be in this order
17	[1 mark] = 63.6 [1 mark]	an answer of 63.6 scores [2 marks]
18	26 [1 mark] 30 [1 mark] 26 [1 mark]	must be in this order

Atomic Structure Practice Exam Questions