LYCOS RETRIEVER 
Periodic Table: Properties
built 140 days ago
Mendeleev's table had the elements arranged by atomic weights with recurring properties in a periodic manner. Where atomic weight placement disagreed with the properties that should occur in a particular spot in the table, he gave preference to the element with the correct properties. He even predicted elements for places that were not yet occupied in the table. These predictions proved to be amazingly accurate.
Source:
The 7 elements classified as "Metalloids" are located in Groups 13, 14, 15, 16 and 17 elements of the Periodic Table. Elements classified as Metalloids have properties of both metals and non-metals. Some are semi-conductors and can carry an electrical charge making them useful in calculators and computers
Source:
This is the premiere computerized periodic table of elements. It now contains 115 elements, with 800+ isotopes and 500+ radioactive decay trees. You can graph element properties and print nearly every window. It ... contains a molecular weight calculator.
Source:
The main value of the periodic table is the ability to predict the chemical properties of an element based on its location on the table. It should be noted that the properties vary differently when moving vertically along the columns of the table, than when moving horizontally along the rows.
Source:
MORE ABOUT
Properties