Vocabulary for Matter and Elements
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 takes up space and has mass
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| mass | the material that matter is made up of
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| volume | how much room/space matter takes up
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| density | D=m/v the amount of material/stuff matter takes up within a specific space
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| atom | the smallest unit of matter that builds up all matter
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| protons | positively charged particles in an atom's nucleus
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| neutrons | particles with no charge that accompany protons in the nucleus of an atom
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| electron | negatively charged particles that move around rapidly outside of an atom's nucleus and that has an attractive force that bonds atoms together
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| Periodic Table | A chart that classifies elements by their physical and chemical properties
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| element | makes up all matter in the universe, cannot be broken down, and is the simplest substance.
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| periods/rows | The rows that make up the Periodic Table and tell us how many energy levels an element has
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| groups or family/columns | The columns in the periodic table that tell us how many electrons are in an atoms outer energy level
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| valence electrons | The electrons in an atom's outer energy level
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| atomic number | The number of protons in an element, also usually determines the number of neutrons and electrons
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| atomic mass | The mass of an element's atoms
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| chemical property | The ability a substance has to combine with others to form new ones
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| physical property | includes a substance's appearance and state of matter.
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| ionic bond | This occurs when elements lose or gain an electron while bonding
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| covalent bond | this happens when elements share an electron while bonding
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| chemical change/reaction | this occurs when the electron's attractive force bonds two elements together creating a reaction or change
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| compound/molecule | two or more elements that combine in a set ratio making a whole new substance
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| mixture | two or more substances that are combined, but retain their properties and are not a whole new substance, thus not chemically combined
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| Nobel Gases | All of elements in Group #18 that are the most stable elements because they have eight valence electrons
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| Halogens | all elements in group #17 they are very reactive with elements in group #1 because they have 7 valence electrons and want to be stable
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| Alkali Metals | all elements in group #1- all have only one valence electron and are very reactive
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| Metalloids | elements with 3-7 valence electrons between metals and non-metals that can react either way
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| Endothermic | a chemical reaction that absorbs energy (decrease in temp)
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| Exothermic | a chemical reaction that produces energy (heats up)
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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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