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Chemistry - Coggle Diagram
Chemistry
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Periodic table
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Group 1 elements
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The further down group 1 you go, the higher their reactivity is.
This is because they have more electrons on their outer shells as you go down. This means you’ll lose more electrons as they are further away, giving a weaker attraction
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Isotopes
two or more forms of the same element
that contain the same number of protons but a different number of neutrons.
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