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group one 7 0 elements
group one 7 0 elements
reaction with water
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when put in water they react vigorously to produce hydrogen gas nd metal hydroxides salts are dissolved in water to produce alkaline solutions
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group 0 elements
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they all have 8 electrons apart from helium which has 2 as they are stable they don't give up electrons
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trends of alkali metals
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increasing reactivity the outer electron id more easily lost as the attraction between the nucleolus and electron decreases because the is further away from the nucleolus
trends group 7
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becomes less reactive as you go down its harder to gain an extra electron because the outer shell is further from the nucleolus
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properties of group 0
increase in boiling point comes from increase of electrons leading to a greater foce which needs more energy to be broken
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