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 table | a table that lists all the existing elements
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| periodic | having a regular repeating pattern
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| periodic law | properties of elements are periodic by their atomic numbers
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| Dmitri Mendeleev | created the first periodic table
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| Henry Moseley | created the second periodic table
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| metals | elements that are shiny, good conductors,malleable and ductile
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| non-metals | elements that are dull and are poor conductors
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| metalloids | elements that have properties of both metals and non-metals
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| periods | horizontal rows in the periodic table
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| groups | column of elements in the periodic table
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| ductile | the ability of a substance to be drawn into a wire
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| malleable | the ability of a substance to be pounded into thin sheets
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| luster | an object's ability to reflect light
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| valence | the electrons in an atom's outer most energy level
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| ion | a charged particle that occurs when electrons move from one atom to another
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| families of elements | a column in the periodic table, aka, a group
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| alkali metals | elements in group 1
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| alkaline metals | elements in group 2
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| transition metals | elements in group 3
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| halogens | elements in group 17
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| noble gases | elements in group 18
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| rare earth elements | metal elements found in group 3 of the periodic tableand the 6th and 7th periods, made of two series: Lanthanide and Actinide
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| lanthanides | any of 15 elements from 57-71 that have common properties
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| actinides | elements 90-103 and have common properties
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| reactivity | the tendency of a substance to undergo chemical reaction, either by itself or with other materials, and to release energy
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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:
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