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Periodic Trends, Trends in Group 1, Trends in Group 7, Transition Metals,…
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Trends in Group 1
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When they are cut, they are shiny but soon they become dull as they react with air, they produce a metal oxide
The melting point and boiling point decreases as you go down the Group 1 because the atoms get bigger
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Trends in Group 7
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When halogens react with metals, they create salts. For example, sodium+chloride=sodiumchloride
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As you go down the group 7, the halogens change from gas(flourine) to solid (iodine)
As you go down the Group 7, the density increases
Transition Metals
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They are shiny, ductile, and malleable just like other metals
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Trends in Group 8
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The noble gases are the most stable elements because the valence shell is full so the valence electrons don't usually react with other elements
They are mostly non-reactive because the valence shell is full but from krypton to radon the reactivity increases.
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