MTCES.8 -Sc.1.1.V
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 has mass and takes up space
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| element | the simplest pure substance, can't be broken down into other substances
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| compound | a substance of two or more elements that arre chemically combined in a specific ratio
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| mixture | two or more substances (elements or compounds) that are mixed together but not chemically combined
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| atom | the smallest part of an element
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| scientific theory | a well tested idea that explains a wide range of data
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| model | representation of an idea (mental, visual, ...)to help people understand a concept that is difficult to study directly
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| electrons | negatively charged particles that revolve around the nucleus of an atom
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| nucleus | the center of an atom, contains protons and neutrons
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| protons | positively charged particles found in the nucleus of an atom
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| energy level | the specific amount of energy in an electron
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| neutrons | uncharged particles that reside in the nucleus of an atom
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| valence electrons | the electrons with the highest energy level in an atom
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| electron dot diagram | a diagram that shows you the number of valence electrons in an atom
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| chemical bond | the force that holds atoms together after the rearrangement of electrons inbetween them
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| symbol | an element's abbreviation
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| atomic number | the number of protons and the number of electrons in an atom
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| period | a row of elements in the periodic table, going across
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| group | a column of elements in the periodic table, going down aka:family
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| family | a column of elements in the periodic table, going down aka:group
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| noble gas | group 18 of the periodic table, have 8 valence electrons
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| halogen | element in group 17, have 7 valence electrons
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| alkali metal | group 1 of the periodic table, have only 1 valence electron
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| ion | an atom or group of atoms with an electric charge
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| polyatomic ions | an ion made of sevral different atoms
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| ionic bond | the attraction between two ions of opposite charges
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| ionic compound | a compound made up of both positive and negative ions
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| chemical formula | the combination of symbols that shows the ratio of a compound
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| subscript | the ratio of elements in a compound
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| crystal | an orderly three dimensional pattern of atoms or ions in a solid
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| covalent bond | a chemical bond in which two atoms share electrons
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| molecule | a neutral group of atoms with covalent bonds
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| double bond | a covalent bond in which the atoms share two pairs of electrons
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| triple bond | a covalent bond in which the atoms share three pairs of electrons
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| molecular compound | a compound made of molecules
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| polar bond | a covalent bond where electrons are shared unequally
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| nonpolar bond | a covalent bond where electrons are shared equally
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| metallic bond | the attraction between a positive metal ion and the loose electrons around it
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| alloy | a material with metal-like properties made up of two or more elements
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| ductable | can be bent and pulled easily, usually refers to a metal
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| malleable | can be rolled into thin sheets, usually refers to a metal
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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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