IB Chemistry SL S3.1 The periodic table: classification of elements questions

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Question 1

Paper 2Easy5 marks

Before comparing simulations of Group 1 metals reacting with water and Group 17 elements reacting with halide ions, a chemistry class uses the periodic table to predict the properties of lithium, sodium, chlorine and bromine.

(a)

State what is meant by periodicity.

[1]
(b)

Explain why metallic character increases from lithium to sodium.

[2]
(c)

Explain why non-metallic character decreases from chlorine to bromine.

[2]

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