Unit 3
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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| Atom | Is the smallest particle into which an element can be divided and still be the same element.
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| Electrons | Negative charged particles
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| Nucleas | A small dense center that has a positive charged is surrounded by moving electrons.
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| Protons | A positively charged particle.
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| Atomic number | is the number of protons in the nucleus of an atom
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| Mass Number | is the total number of protons and neutrons in an atoms nucleus
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| periodic table | is the arrangement of the elements created by Mendeleev.
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| Chemical Symbol | Is an abbreviation for the elements name.
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| Average atomic massy | is the atoms average weighted masses of all the naturally occurring isotopes of the elements.
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| Metals | Are elements that are shiny and conduct heat and electricity well.
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| Nonmetals | are poor conductors of heat and electricity.
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| Metalloids | Are elements that have some metalloids are used to make semiconductor chips in computer
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| Group | vertical cloumns of elements on the periodic table.
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| Period | is the horizontal row of elements on the periodic table
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| Chemical bond | is an interaction that holds atoms or ions together
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| Valance electrons | is the electrons found in the outermost energy level of an atom.
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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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