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Dive into the characteristics of different elemental groups found on the periodic table. Discover the reactivity levels of alkali metals, the conductivity of transition metals, the dual properties of metalloids, the dangers of halogens, and the stability of noble gases. Learn about rare earth elements including Lanthanides and Actinides.
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ALKALI METALS • very reactive metals • Hydrogen is not a member, it is a non-metal • 1 electron in the outer shell • combine violently with water (stored in oil) • Only compounds in nature • soft and shiny (can be cut with a knife)
ALKaLINEEARTH METALS • very reactive (less reactive than alkali metals) • -only compounds in nature • -hard, grey-white, good conductors • 2 electrons in the outer shell
TRANSITION METALS • ductile and malleable, and conduct electricity and heat • groups 3-12 • bridge between very reactive and less reactive elements
METALLOIDS • have properties of both metals and non-metals. • semiconductor/insulator of electricity
HALOGENS • exist in all three states of matter • -dangerous to humans • -poisonous and highly corrosive
NOBLE GASES • do not form compounds easily • found in the atmosphere • -chemically stable/not reactive • Happy Elements (Full outer shells)
