Chapter 7 & 8 vocab
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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| is the smallest piece of an element that still represents that element. | Atom
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| particle with one negative charge | Electron
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| most of an atom's mass and positive charge is concentrated in a small area in the center of the atom. | Nucleus
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| is an atomic particle that has one positive charge. | Proton
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| is a neutral particle that exists in the nucleus of an atom. | Neutron
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| is an area around an atomic nucleus where an electron is most likely to be located. | Electron Cloud
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| number of protons in an atom of an element. | Atomic Number
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| are atoms of the same element that have different numbers of neutrons. | Isotopes
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| is the sum of the number of protons and neutrons in an atom. | Mass Number
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| is the average mass of the element's isotopes, weighted according to the abundance of each isotope. | Average Atomic Mass
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| is an atom that is no longer neutral because it has gained or lost electrons. | Ion
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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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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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