group 2 and 3 but they also include the staggered line from aluminium to polonium
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Properties of transition metals
good conductor of elec + heat, ductile, malleable, high MP and BP, hard, strong, shiny, sonorous, reactivity varies, metals form coloured compounds
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More properties
good catalysts, denser than group 1 metals, less reactive than group 1 metals, they form ions with different charges in coloured compunds
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Group 7 metals are known as the
halogens
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The elements all exist as
diatomic molecules
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They have low
melting points and boiling points
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The trend in melting and boiling points is
the further down the group, the higher the melting and boiling points
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The trend in reactivity is
the higher up the group, the more reactive it is
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Halide ions are
negative
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Explain why bromine is less reactive than chlorine
The bromine atom is bigger (it has more shells but say the atoms is bigger in order to get the marks), electron gained less energy, weaker attraction from the nucleus
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They form
ionic compounds
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A more reactive Group 7 element can
displace a less reactive group 7 element from its compound
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Other cards in this set
Card 2
Front
Properties of transition metals
Back
good conductor of elec + heat, ductile, malleable, high MP and BP, hard, strong, shiny, sonorous, reactivity varies, metals form coloured compounds
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