chapter 12 vocabulary (periodic tabel)
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 | discribes something that ocours or repets at regular intervals
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| periodic law | the law that states that the repeting chemical and physical properties of elements change periodicaly with the atomic numbers of the elements
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| period | in chemistry a horizantial row of elements in the periodic tabel
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| group | a vertical colume of elements in the periodic tabel; elements in a large group share chemical properties
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| alkali metals | one of the elements of group 1 in the periodic tabel (lithium,sodium,pottasium,rudibium,cesium,and francium)
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| alkaline-earth metal | one of the elements of grooup 2 of the periodic tabel(beryllium,magnisium,calcium,strontium,barium,andradium)
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| halogen | one of the elements of group 17 on the periodis tabel(fluorine,chlorine,borime,and astatine)halogens combine with most metals to form salt
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| noble gas | one of the groups 18 of the periodic tabel(helium,neon,argon,kripton,xenon,and radon)noble gasses 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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