atoms and molecules
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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| Anything that has mass and takes up space? | matter
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| What matter is made up of, the building block of matter? | atom
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| what is the central region of an atom? | nucleus
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| what is the region surrounding the central area called? | electron cloud
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| What particles does the nucleus contain? | Protons and neutorns
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| what particles does the electron cloud contain? | electrons
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| The number of protons in the nucleus of an atom of an element? | atomic number
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| What kind of charge does an electron have? | Negatively charged
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| What kind of charge does a neutron have? | uncharged
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| What kind of charge does a proton have? | Positive charge
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| One or more atoms of an element having the same number of protons but different number of neutrons? | isotope
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| An atom that has a charge because it has gained or lost electrons? | Ion
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| What is the modern model of an atom? | electron-cloud model
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| What part of an atom hold the most mass? | the nucleus
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| What type of ion has more protons than electrons? | positive ion
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| A mixture in which substances are unevenly mixed? | heterogeneous mixture
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| A mixture in which 2 or more substances are evenly mixed, but aren't bonded together? | homogeneous mixture
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| Two or more atoms that are held together by chemical bonds and act a s a unit? | molecule
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| Substance made of two or more elements that are chemically joined in a specific combination? | compound
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| Matter with a composition that is always the same? | substance
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| Matter that can vary in composition? | mixture
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| Substance made of only one kind of atom? | element
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| Matter is classified as? | mixture and substance
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| 3 examples of an element? | gold, carbon, and oxygen
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| 3 examples of compounds? | water,carbon dioxide, and sodium chloride
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| What information is found in a compound chemical formula? | chemical symbols, subscripts,and small numbers
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| What is another word for a Homogeneous mixture? | solution
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| What are the parts to a solution? | solute and solvent
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