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C1S1B2

Elements and Atoms

QuestionAnswer
matter anything that has mass and takes up space
compound a pure substance made of two or more elements that are combined chemically in a specific ratio
mixture two or more substances that are in the smae place but are not chemically combined
atom the smallest particle of an element
scientific theory the idea that explains and connects a wide range of observations
models physical, mental, and visual representations of an idea to help people understand what they cannot observe directly
electrons the negatively charged particles in an atom
nucleus a tiny region in the atom's center
protons positively charged particles in the nucleus of an atom
energy level a region around the nucleus in which electrons of the same energy are likely to be found
neutron an electrically neutral particle
Created by: hailieswanson
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