Lecture 4.2: Combining Atoms

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Presentation transcript:

Lecture 4.2: Combining Atoms

Atoms (review) Smallest unit of matter Can not be divided Contain protons, neutrons, and electrons H

Element A pure substance consisting of only one particular type of atom Determined by the number of PROTONS in the nucleus (atomic #) Can not be broken down into another substance O H

Molecule Two or more ATOMS combined Can be two or more of the SAME element or DIFFERENT elements H O H H

Compound Special type of molecule Two or more atoms of DIFFERENT ELEMENTS combined H O H H

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