chapter 2a basic terminology

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Last updated 9:49 PM on 9/19/26
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16 Terms

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matter

anything that has mass and takes up space

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element

substance that cannot be broken down into simpler substances

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main chemicals in the body

chon

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atoms

smallest identifiable unit of matter

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atomic number

numbers of protons in the nucleus

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mass number

number of protons and neutrons

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isotopes

variations of the same element, but more or less neutrons

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atomic mass

average mass of naturally occuring isotopes

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ionic bonds

transferring electrons

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covalent bonds

sharing of 2+ electrons

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polar covalent

unequal sharing

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nonpolar covalent

equal sharing

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hydrogen bond

attraction between positive h and negative o

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ion

a charged atom that has gained or lost an electron

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cations

positive, lose an electron

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anion

negative, gain an electron