Grouping the Elements.

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Presentation transcript:

Grouping the Elements

Questions What are the vertical columns in a periodic table called? Groups Each group, has elements in it that are similar and that’s why they are grouped together

Hydrogen Electrons in outer level: One Reactivity: Reactive Other Info: colorless, odorless at room temp

Group 1: Alkali Metals Group contains: metals Electrons in outer level: One Reactivity: Very Reactive Other Info: soft, silver color, shiny Elements: Lithium, Sodium, Potassium

Group 2: Alkaline-Earth Metals Group contains: metals Electrons in outer level: Two Reactivity: Very Reactive: less than alkali Other Info: silver, less reactive Elements: Beryllium, Calcium, Magnesium

Group 3-12: Transition Metals Group contains: metals Electrons in outer level: One or Two Reactivity: Reactive: less than alkaline- earth Other Info: shiny, conductors Elements: Iron, Mercury, Tungsten

Special Transitions Lanthanides: Actinides: Top row, shiny, reactive Used a lot to make steel Actinides: Bottom row Very Reactive and unstable

Group 13: Boron Group Group contains: 1 metal & 4 metals Electrons in outer level: Three Reactivity: Reactive Other Info: Solid at room temp Elements: Boron, Aluminum, Gallium

Group 14: Carbon Group Group contains: 1 nonmetal, 2 metalloids, 2 metals Electrons in outer level: Four Reactivity: Varies Other Info: Solid at room temp Elements: Carbon, Silicon, Tin

Group 15: Nitrogen Group Group contains: 2 nonmetals, 2 metalloids, 1 metal Electrons in outer level: 5 Reactivity: Varies Other Info: Solid at room temp (except nitrogen) Elements: Nitrogen, Phosphorus, Arsenic

Group 16: Oxygen Group Group contains: 3 nonmetals, 1 metalloid, 1 metal Electrons in outer level: Six Reactivity: Reactive Other Info: Solid at room temp except oxygen Elements: Oxygen, Sulfur

Group 17: Halogen Group Group contains: nonmetals Electrons in outer level: Seven Reactivity: Very Reactive Other Info: Poor conductors and violent Elements: Fluorine, Chlorine, Bromine

Group 18: Noble Gases Group contains: nonmetal Electrons in outer level: Eight except Helium Reactivity: UnReactive Other Info: colorless, odorless gases Elements: Neon, Argon, Krypton