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
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
Recall that alkali metals:
a) are soft b) have relatively low melting points
Describe the reactions of lithium, sodium and potassium with water
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
Explain this pattern in reactivity in terms of electronic configurations