Periodic Table
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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| Periodic Table | An arrangement of elements in columns, based on a set of properties that repeat from row to row.
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| Period | Each row in the table of elements. As period numbers increase, so do the orbitals for the elements included in that period.
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| Group | Each column on the periodic table. Elements within the same group and similiar properties.
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| Periodic Law | The pattern of repeating properties in the periodic table.
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| Atomic Mass Unit (amu) | One twelfth the mass of a carbon-12 atom.
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| Metals | Elements that are good conductors of electric current and heat.
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| Transition Metals | Elements that form a bridge between the left and right side of the periodic table. They have the ability to form compounds with distinctive colors.
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| Nonmetals | Elements that are poor conductors of heat and electric current.
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| Metalloids | Elements with properties that fall between those of metals and nonmetals.
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| Valence Electron | An electron that is in the highest occupied energy level of an atom.
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| Alkali Metals | Elements in Group 1A of the periodic table. They have a single valence electron and are extremely reactive.
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| Alkaline Earth Metals | Elements in Group 2A of the periodic table. They have two valence electrons and are harder than metals in Group 1A.
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| Halogens | Elements in Group 7A. They have seven valence electrons.
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| Noble Gas | Elements in Group 8A. They have eight valence electrons (except for Helium which has two) and they are colorless, odorless, and extremely unreactive.
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| Mendeleev's Proposal | Arrangment of the elements into rows in order of increasing mass so that elements with similar properties were in the same column.
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| Mendeleev's Prediction | Using the properties of existing elements to predict properties of undiscovered elements.
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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:
brittneymr
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