chapter 1 review Word Scramble
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Question | Answer |
homogeneous mixture | a mixture in which two or more substances are not evenly mixed but not bonded together |
matter | any thing that has a mass and takes up space |
elements | substance made of only one kind of atom |
atom | a small particle that is the building block of matter |
compound | substance made of two or more elements that are chemically joined in a specific combination |
heterogeneous mixture | a mixture in which the substances are not evenly mixed |
molecule | two or more atoms that are held together by chemical bonds and act as a unit |
substance | matter with a composition that is always the same |
proton | positively charged particle in the nucleus of an atom |
electron cloud | region surrounding an atom's nucleus where one or more electrons are often found |
electron | negatively charged particle that occupies the space in an atom outside the nucleus |
isotope | one or more atoms of an element having the same number of protons but a different number of neutrons |
nucleus | region at the center of an atom that contains most of the mass of an atom |
ion | an atom that has a charge because it has gained or lost electrons |
atomic number | then number of protons in the nucleus of an atom of an element |
neutron | uncharged particle in the nucleus of an atom |
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