matter and energy
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 | the smallest particle into which an element can be divided into anything simplier
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| electrons | these negatively charged particles
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| nucleus | a small dense center that has a positive charge and is surrounded by moving electrons
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| protons | the positively charged particles in nuclues
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| nuetrons | uncharged particles
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| electron cloud | electrons move within an area around the nucleus
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| atomic number | number of protons in nucleus of atom
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| mass number | number of protons and neutrons in nuclues
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| periodic table | arrangement of elements
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| chemical symbol | abbreviation for the elements name
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| average atomic mass | an atom is weighted average of the masses of all the naturally occurring isotopes of that element
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| metal | elements are shiny and conduct-heat and electricity well
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| nonmetal | poor conductors of heat and electricity
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| metalliods | both property of metals and non metals
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| group | vertical column of eleents
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| period | horizontal row of elements
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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:
18khenry0114
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