GCSE Chemistry Specification

Edexcel 1CH0

Section 6: (a) Group 1

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#6.1

Explain why some elements can be classified as alkali metals (group 1), halogens (group 7) or noble gases (group 0), based on their position in the periodic table

#6.2

Recall that alkali metals:

a) are soft
b) have relatively low melting points

#6.3

Describe the reactions of lithium, sodium and potassium with water

#6.4

Describe the pattern in reactivity of the alkali metals, lithium, sodium and potassium, with water; and use this pattern to predict the reactivity of other alkali metals

#6.5

Explain this pattern in reactivity in terms of electronic configurations