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Group Names

Group Names. Group 1: Alkali metals except hydrogen Group 2: Alkaline Earth metals Groups 3-12: Transitional Metals Group 17: Halogens Group 18: Noble Gases .

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Group Names

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  1. Group Names • Group 1: Alkali metals except hydrogen • Group 2: Alkaline Earth metals • Groups 3-12: Transitional Metals • Group 17: Halogens • Group 18: Noble Gases

  2. Metals are found in groups 1-12 and at the bottom of groups 13 and 14 so we say metals are located on the left side of the periodic table • Nonmetals are located on the right side. • Metalloids (Semiconductors) are located along the stairstep between the metals and nonmetals • The lanthanide series are part of period 6 and includes elements whose atomic numbers range from 58-71 • The actinide series are part of period 7 and includes elements whose atomic numbers range from 90- 103.

  3. All elements whose atomic number is greater than 83 will be radioactive • All elements whose atomic number is greater than 92 are synthetic (man-made).

  4. Common Characteristics of Metals • Shiny • Good conductors of heat and electricity • malleable (can be hammered into thin sheets) • ductile (can be formed into wires) Group 1: Alkali Metals • Have one valence electron which makes them the most reactive metals. • To be very reactive means that alkali metals like to bond (form compounds) with other elements. • Rarely found free in nature

  5. The most reactive metals are the alkali metals. • The most reactive nonmetals are the halogens • The most nonreactive elements are the noble gases. They have complete outer energy levels and are considered the most stable elements on the periodic table.

  6. Group 2: Alkaline-Earth metals • Have 2 valence electrons • Very reactive but not as reactive as group 1. Transition metals • Located in Groups 3-12 • Generally nonreactive • Common metals such as gold, iron, copper, nickel Other Metals Aluminum, tin and lead are found in groups 13-14

  7. Group 17: Halogens • Have 7 valence electrons • Most reactive nonmetals ; like to combine with other atoms Group 18: Noble gases • Have a full outer energy level • All Noble gases except helium have 8 valence electrons • Are very stable, meaning that they do not like to combine with other elements • Exists as single atoms, not compounds • Often referred to as inert which means non-reactive

  8. Metalloids aka Semiconductors • Located along the stairstep between the metals and nonmetals • Separate metals from nonmetals on periodic table • Have some properties of metals and some properties on nonmetals • Often used in electronic equipment

  9. Why is hydrogen located in group 1 eventhough it is not a metal? • What separates the metals from the nonmetals on the periodic table? • Which group on the periodic table contains the most reactive metals and why? • Which group on the periodic table contains the most reactive nonmetals and why? • Which group on the periodic table contains the most stable elements? • Where are the majority of the nonreactive metals found? • Where are the lanthanides found on the periodic table? • Would curium be radioactive and/or synthetic? Why? • Using a periodic table and the concepts taught since October 10, tell me all you know about Bismuth.

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