2.1
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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| matter | anything that occupies space and has mass
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| mass | the quantity of matter an object has
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| elements | substances that cannot be broken down chemically into simpler kinds of matter
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| atom | the simplest particle of an element that retains all the properties of that element
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| nucleus | the central region of a cell
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| proton | positively charged particles
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| atomic number | the number of protons in an atom
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| mass number | equal to the total number of protons and neutrons
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| electrons | negatively charged particles
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| orbital | a three-dimensional region around the nucleus that indicates the probable location of an electron
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| isotopes | atoms that have a different number of neutrons
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| compounds | atoms of two or more elements in fixed proportions
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| chemical bonds | the attractive forces that hold elements together
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| molecule | the simplest part of a substance that retains all the properties of that substance and can exist in a free state
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| covalent bond | when two atoms share one or more pairs of electrons
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| ion | an atom or molecule with an electric charge
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| ionic bond | when positive and negative electrical charges attract and form a compound
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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:
taylorwagner
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