Emily Schneider chapter 12 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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| periodic | describes something that occures or repeats at regular intervals
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| periodic law | the law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements.
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| period | in chepistry, a horizontal row of elemetns in the periodic table
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| group | a vertical column of elements in the periodic table; elements in a group share chemical properties
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| alkali metal | one of teh elements of Group 1 of the periodic table (lithium, sodium, potassium, rubidium, cesuim, and francium)
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| alkaline-erth metal | one of the elements of Group 2 of the periodic table (beryllium, magnesuim, salcium, baruim, and radium)
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| halogen | one of the elements of Group 17 of the periodic table (flourine, chlorine, bromine, iodine, and astatine); halogens combine with most metals to form salts.
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| noble gas | one of the elemetns of Group 18 of he periodic table (helium, neon, argon, krypton, xenon, and radon);noble gases are unreactive.
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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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