The Periodic Table: metals, nonmetals, and metalloids
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Mendeleev | arranged the known elements in order of increasing atomic weight in successive sequences so that elements with similar chemical properties fell into the same column.
He provided for elements that were unknown at the time and predicted their properties
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| Periodic Law | The properties of the elements are periodic functions of their atomic numbers.
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| Groups or families | Vertical group of elements on periodic table
Similar chemical and physical properties
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| Period | Horizontal group of elements on periodic table
Transition from metals to nonmetals
Elements within a period have properties that change progressively across the table
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| alkali metals | IA metals
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| alkaline earth metals | IIA metals
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| Halogens | VIIA non metals
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| Noble | VIIIA non metals
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| Chemical properties of metals | Outer shells contain few electrons
Form cations by losing electrons
Form ionic compounds with nonmetals
Solid state characterized by metallic bonding
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| Chemical properties of non metals | Outer shells contain four or more electrons
Form anions by gaining electrons
Form ionic compounds with metals and covalent compounds with other nonmetals
Form covalently bonded molecules; noble gases are monatomic
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| Metals, non metals, metalloids | Metals are to the left of stair step(80% of elements)best metals are on the far left of the table.
Nonmetals are to the right of stair step(20% of elements) best nonmetals are on the far right of table
Metalloids have one side of the box on the stair st
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| Periodic trends in metallic character | Metallic character increases from top to bottom and decreases from left to right with respect to position in the periodic table. Cs is the most active occurring metal.
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| Periodic trends in nonmetallic character | Nonmetallic character decreases from top to bottom and increases from left to right in the periodic table. Fluorine is the most active nonmetal.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
tilleryc
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