7th Grade Atomic Theory Vocabulary
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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Neutron | No charge
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Electron | Negative Charge
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Proton | Positive charge
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Element | When something is only one kind of atom
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Atom | The basic unit of a chemical element
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Malleable | can be smashed without crumbling
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Luster | Shiny; reflects light
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Ductile | can be drawn into a thin wire
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Corrosive | rusts
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Density | Mass per volume
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Noble Gas | Unreactive Elements found in group 18
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Transitional Metals | Metallic element that has valence electrons In two shells instead of one
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Halogens | Most reactive nonmetal and has seven valence electrons
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Alkali Metal | Very reactive; only one valence electron
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Alkaline Earth Metal | Reactive; two valence electrons
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Alloy | a metal made by combining two or more metallic 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:
ldoris
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