Chemistry · May / June 2022 · Paper 41 · Question 7
0620
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The Periodic Table can be used to classify elements.
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7(a)(i)[1]
from left to right
caesium → rubidium→ potassium →sodium → lithium
7(a)(ii)[1]
caesium hydroxide
7(b)[1]
Group I element is less strong / not strong
ORA
OR
Group I element has low(er) density ORA
OR
Group I element is soft(er) ORA
7(c)[1]
solid
7(d)(i)[2]
colourless (1)
orange / brown / yellow (1)
7(d)(ii)[2]
Br – (1)
loses electron(s) (1)
7(e)[3]
432(1)
436(1)
– 4(1)
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