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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| alkali metals | highly reactive metals, never found uncombined. Metals are soft enough to cut with a butter knife
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| alkaline earth metals | not as reactive but still never found uncombined. they serve as important minerals for our body.
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| transition metals | less reactive metals. useful for building materials, jewellery and coins. also used as oxides to make paint and pigments.
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| noble gases | unreactive gases always found on their own nature. used in neon signs, balloons, and light bulbs
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| metalloids | elements on both the zig zag line.both metals and non metals.
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| periods | rows one through seven. atomic number increases from left to right. those in the same period have the same number of energy levels
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| groups | most reactive and most inert. are families which are the coluoms from one to eighteen. same number of valence electrons. chemical properties are very similar.
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| metals | shiny luster, solid at room temperature except mercury and germanium.ductile, malleble, good conductors, high density, high melting points, reactivity
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| non metals | no luster, poor conductors, brittle, not ductile, not maleable, low density, low melting point, less reactive than metals.
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| periodic table | arranges all of the known elements in order increasing atomic number.order generally coincides with increasing atomic mass too.
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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.
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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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