temperature
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measure of the heat energy of a substance
-temp scales: F, C, K
-atoms and molecules are constantly present in motion; the more heat is
present, the faster the particles move
,physical properties
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characteristic that can be observed without affecting the identity of the
substance
-size/shape
-color
-physical state
-melting point
density
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the ratio of a substance's mass to its volume
-can be used to identify a substance because it is an intensive property
(constant for the same substance)
ex. D=m/v
wavelength
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greek letter lambda- symbol
-distance between adjacent peaks on a wave
-related to the color of the light
, representative elements
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groups 1, 2, 13-18
-most are quite reactive (usually found in compounds)
except group 18 (noble gases, refuse to react with things)
proton
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in the nucleus "nucleons"
-symbol: p+
-charge: +1
-mass: 1.0073= 1 amu
accuracy
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how close a measurement is to the true value
-it is best to take multiple measurements and average them, the accuracy is
then based on the average of the measurements
Give this one a try later!
measure of the heat energy of a substance
-temp scales: F, C, K
-atoms and molecules are constantly present in motion; the more heat is
present, the faster the particles move
,physical properties
Give this one a try later!
characteristic that can be observed without affecting the identity of the
substance
-size/shape
-color
-physical state
-melting point
density
Give this one a try later!
the ratio of a substance's mass to its volume
-can be used to identify a substance because it is an intensive property
(constant for the same substance)
ex. D=m/v
wavelength
Give this one a try later!
greek letter lambda- symbol
-distance between adjacent peaks on a wave
-related to the color of the light
, representative elements
Give this one a try later!
groups 1, 2, 13-18
-most are quite reactive (usually found in compounds)
except group 18 (noble gases, refuse to react with things)
proton
Give this one a try later!
in the nucleus "nucleons"
-symbol: p+
-charge: +1
-mass: 1.0073= 1 amu
accuracy
Give this one a try later!
how close a measurement is to the true value
-it is best to take multiple measurements and average them, the accuracy is
then based on the average of the measurements
