M3 Vocabulary - The Structure of the Atom (Chem)

an explanation supported by many experiments; is still subject to new experimental data, can be modified, and is considered successful if it can be used to make predictions that are true

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NGSS.HS-ESS1-2

a theory proposed by John Dalton in 1808, based on numerous scientific experiments, which marked the beginning of the development of modern atomic theory

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NGSS.HS-PS1-7

smallest particle that retains the properties of an element

a visual, verbal, and/or mathematical explanation of data collected from many experiments

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NGSS.HS-LS1-6

NGSS.HS-LS2-4

ray of radiation emitting from the cathode end and traveling to the anode end of a tube used by researchers to study mass and charge

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NGSS.HS-PS2-5

negatively charged particles that are part of all forms of matter

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

tiny, dense, centrally located region within the atom that contains all of an atom’s positive charge and virtually all of its mass

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NGSS.HS-PS1-8

a subatomic particle carrying a charge equal to but opposite that of an electron; that is, a positive charge of 1+

a subatomic particle with a mass nearly equal to that of a proton, but that has no electrical charge

a chart that organizes all known elements into a grid of horizontal rows (periods) and vertical columns (groups or families) arranged by increasing atomic number

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NGSS.HS-PS1-1