Specification Point 1.23:
Understand why elements in the same group of the periodic table have similar chemical properties
Similar Chemical Properties
Group: Vertical columns that show how many outer electrons an atom has
Chemical properties of elements in the same group:
- Elements in the same group in the periodic table will have similar chemical properties
- This is because they have the same number of outer electrons so will react and bond similarly
- For example, both lithium and sodium are in group 1 and can react with elements in group 7 to form an ionic compound (charges of group 1 elements are +1, charges of group 7 elements are -1)
Specification Point 1.24:
Understand why the Noble gases (Group 0) do not readily react
Why Noble Gases are Unreactive
Noble gases: Group 0 elements that are unreactive
Noble gases are inert (unreactive) as they have a full outer shell of electrons so do not easily lose or gain electrons
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Jamie got a First class degree in Chemistry from Oxford University before going on to teach chemistry full time as a professional tutor. He’s put together these handy revision notes to match the Edexcel IGCSE Chemistry specification so you can learn exactly what you need to know for your exams.
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