04 Notes - Families of Elements

04 Notes - Families of Elements - Pluchino Regents...

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Pluchino – Regents Chemistry Periodic Table and Trends – 04 Families of Elements Aim: What properties/trends occur within a family (group) in the periodic table? Do Now: What is meant by “children are often a reflection of their parents?” Why do electrons in the same family (group) have similar properties? Elements in the same group have the same number of valence electrons. Alkali Metals Group 1 Very soft, shiny metals React violently with air and water 1 valence electron Most reactive metals Alkali Earth Metals Group 2 Soft, shiny metals React with air and water 2 valence electrons Transition Metals Groups 3-12 Strong, shiny metals Form brightly colored compounds Chalcogens
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