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39 Cards in this Set
- Front
- Back
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matter
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mass and volume
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mass
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amount of matter in a substance (g, kg...)
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volume
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amount of space matter takes up
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3 states
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solid liquid gas
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Kenetic Molecular Theory
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matter is made of particles called atoms
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sublimation
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solid to gas
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condensation
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gas to liquid
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conductivity
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electricity/heat
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pure substance
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substance made of only one kind of matter (elements or compounds)
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elements have
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one type of atom
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compounds have
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2+ types of atoms
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density
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mass/volume
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qualitative observation
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we can describe it
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quantitative observation
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can be measured
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atoms
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3 parts to atoms (subatomic particles)
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what make up the nucleus
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protons and neutrons
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proton
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heavy, + charge
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neutron
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heavy, no charge
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electron
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almost no mass, surround nucleus, -charge, 99.9% of volume in atom
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n. bohr
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(1885-1962) electrond travel in "shells" around nucleus... electrons "orbit" around nucleus
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e. Rutherford
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discovered prontons+neutrons
discovered nucleus nucleus= +charge |
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jj. thomson
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discovered electrons
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most philosophers said
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matter can be endlessly divided until the smallest piece (atomos) is left
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j. dalton
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matter= small spheres
atom= smallest particle of element atoms= cannot be created, destroyed, divided |
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compounds
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different elements combining their atoms together in specific proportions
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dalton suggested
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that matter is made up of atoms
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thomson proposed
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atoms contain negatively charged particles (electrons)
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ruthford discovered
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the neucleus and its subatomic
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electrons have
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different amounts of energy
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subatomic particles
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protons neutrons electrons
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malleable
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capable of being shaped by hammer or pressure from rollers
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ductility
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a solid materials ability to deform under tensil stress
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crystallinity
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degree of structural order in a solid
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viscosity
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state of being thick, sticky, and semifluid in consistency
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solubility
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the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a homogeneous solution of the solute in the solvent.
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density
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the degree of compactness of a substance.
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magnetism
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a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.
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nucleus
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the central and most important part of an object, movement, or group
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evaporation
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liquid to gas
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