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English Class: The Periodic Table

Cristian Ospina T辿llez
Cristian Ospina T辿llez

The document discusses the importance and history of the periodic table. It was created by Dmitri Mendeleev to organize the known elements according to increasing atomic weight and how they react. The periodic table groups elements into columns called families that share similar properties. It provides information on important families including hydrogen, alkali metals, alkaline earth metals, transition metals, and noble gases. The periodic table is a fundamental tool for chemists to understand the elements.

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THE PERIODIC TABLE CRISTIAN OSPINA TLLEZ UNIVERSITY OF TOLIMA ENGLISH III
WHY IS THE PERIODIC TABLE IMPORTANT? The periodic table is the most useful tool to a chemist. You get to use it on every test. It organizes lots of information about all the known elements.
DIMITRI MENDELEIEV: FATHER OF THE TABLE Put elements in rows by increasing atomic weight. Put elements in columns by the way they reacted. SOME PROBLEMS He left blank spaces for what he said were undiscovered elements. (Turned out he was right!)
English Class: The Periodic Table
FAMILIES ON THE PERIODIC TABLE Columns are also grouped into families. Families may be one column, or several columns put together. Families have names rather than numbers.
HYDROGEN Hydrogen belongs to a family of its own. Hydrogen is a diatomic, reactive gas. Hydrogen was involved in the explosion of the Hindenberg. Hydrogen is promising as an alternative fuel source for automobiles
ALKALI METALS 1st column on the periodic table (Group 1) not including hydrogen. Very reactive metals, always combined with something else in nature (like in salt).
ALKALINE EARTH METALS Second column on the periodic table. (Group 2) Reactive metals that are always combined with nonmetals in nature.
TRANSITION METALS Elements in groups 3-12 Less reactive harder metals Includes metals used in jewelry and construction.
BORON FAMILY Elements in group 13 Aluminum metal was once rare and expensive, not a disposable metal.
CARBON FAMILY Elements in group 14 Contains elements important to life and computers. Carbon is the basis for an entire branch of chemistry. Silicon and Germanium are important semiconductors.
NITROGEN FAMILY Elements in group 15 Nitrogen and phosphorus are both important in living things. Most of the worlds nitrogen is not available to living things.
OXYGEN FAMILY Elements in group 16 Oxygen is necessary for respiration. Many things that stink, contain sulfur (rotten eggs, garlic, skunks,etc.)
HALOGENS Elements in group 17 Very reactive, volatile, diatomic, nonmetals Always found combined with other element in nature .
THE NOBLE GASES Elements in group 18 VERY unreactive, monatomic gases Used in lighted neon signs
THE RARE EARTH ELEMENTS The 30 rare earth elements are composed of the Lanthanide and Actinide Series.

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English Class: The Periodic Table

  • 1. THE PERIODIC TABLE CRISTIAN OSPINA TLLEZ UNIVERSITY OF TOLIMA ENGLISH III
  • 2. WHY IS THE PERIODIC TABLE IMPORTANT? The periodic table is the most useful tool to a chemist. You get to use it on every test. It organizes lots of information about all the known elements.
  • 3. DIMITRI MENDELEIEV: FATHER OF THE TABLE Put elements in rows by increasing atomic weight. Put elements in columns by the way they reacted. SOME PROBLEMS He left blank spaces for what he said were undiscovered elements. (Turned out he was right!)
  • 5. FAMILIES ON THE PERIODIC TABLE Columns are also grouped into families. Families may be one column, or several columns put together. Families have names rather than numbers.
  • 6. HYDROGEN Hydrogen belongs to a family of its own. Hydrogen is a diatomic, reactive gas. Hydrogen was involved in the explosion of the Hindenberg. Hydrogen is promising as an alternative fuel source for automobiles
  • 7. ALKALI METALS 1st column on the periodic table (Group 1) not including hydrogen. Very reactive metals, always combined with something else in nature (like in salt).
  • 8. ALKALINE EARTH METALS Second column on the periodic table. (Group 2) Reactive metals that are always combined with nonmetals in nature.
  • 9. TRANSITION METALS Elements in groups 3-12 Less reactive harder metals Includes metals used in jewelry and construction.
  • 10. BORON FAMILY Elements in group 13 Aluminum metal was once rare and expensive, not a disposable metal.
  • 11. CARBON FAMILY Elements in group 14 Contains elements important to life and computers. Carbon is the basis for an entire branch of chemistry. Silicon and Germanium are important semiconductors.
  • 12. NITROGEN FAMILY Elements in group 15 Nitrogen and phosphorus are both important in living things. Most of the worlds nitrogen is not available to living things.
  • 13. OXYGEN FAMILY Elements in group 16 Oxygen is necessary for respiration. Many things that stink, contain sulfur (rotten eggs, garlic, skunks,etc.)
  • 14. HALOGENS Elements in group 17 Very reactive, volatile, diatomic, nonmetals Always found combined with other element in nature .
  • 15. THE NOBLE GASES Elements in group 18 VERY unreactive, monatomic gases Used in lighted neon signs
  • 16. THE RARE EARTH ELEMENTS The 30 rare earth elements are composed of the Lanthanide and Actinide Series.