science
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 chart of the elements showing the repeating pattern of their properties.
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| Atomic mass | the average mass of one atom of an element.
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| Nucleus | the central core of an atom containing protons and usually neutrons.
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| Protons | a small, positively charged particle in the nucleus of the atom.
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| Neutrons | a small particle in the nucleus of the atom, with no electrical charge.
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| Electrons | a tiny, negatively charged particle that moves around the nucleus of an atom.
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| Atomic number | This number indicates the number of protons in a atom
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| Lewis Dot Structure | a model of the atom which shows the valence electrons surrounding the element’s chemical symbol.
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| Valence electrons | the electrons in the outermost electron level or orbital (highest energy level) of the electron
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| Period | a horizontal row of elements in the periodic table.
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| family/group | elements in the same vertical column of the periodic table.
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| Metalloid | an element that has some of the characteristics of metals and some of the characteristics of nonmetals.
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| Malleable | a term used to describe a material that can be hammered or rolled into shape.
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| Ductile | a term used to describe a material that can be pulled out into a long wire.
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| Alkali metals | an element in group 1 of the periodic table. So reactive that they never are found uncombined in nature. soft and shiny and have one valence electrons.
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| Alkaline earth metals | an element in group 2 of the periodic table.
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| Transition metals | an element in groups 3 through 12 of the periodic table
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| Element | a pure substance that cannot be broken down. (atoms make up elements)
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| Compound | 2 or more elements chemically combine..
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| Positive | Having a deficiency of electrons; having a higher electric potential
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| Negative | Having a surplus of electrons; having a lower electric potential
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| Neutral | Not helping or supporting either of two opposing sides.
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| 2 | First row
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| 8 | Second row
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| 18 | Third row
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| 32 | Fourth row
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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:
abby101
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