MSU General Chemistry 141 Exam 1
- increase w size of particle, surface area - ANS-London Dispersion Forces
-atom was mostly empty space
-small dense positive nucleus in the center of the atom
-his drawing looked like jimmy neutron symbol - ANS-rutherfords experiment showed...
-Best available explanation of the evidence/ data/ observations
-Explains how/why
-makes testable predictions
-falsifiable
-may change over time - ANS-Scientific Theory
-change in matter means change in energy
-caused by change in forces
-conserved
-joule
-never lost- can be transferred or transformed - ANS-energy
-discovered electron
-Cathode ray tube- glass tube consisting of 2 electrodes under very low pressure, when high
voltage is applied cathode emits particles that move towards anode - ANS-JJ Thomson
-elements are composed of small indivisible, indestructible atoms
-all atoms of an element are identical and have the same mass properties
-diff elements have diff atoms
-compounds are combos of atoms
-chem rxns are rearrangements of atoms - ANS-Dalton's Atomic Theory
-Greeks- earliest atomic theory- not based on experimental evidence but on philosophy
-"Atomos" not to be cut
-Atoms were in constant motion - ANS-Development of Atomic Theory
-KE= 1/2mv^2
-energy associated w motion - ANS-Kinetic Energy
-particles could be deflected by electrical fields in a direction that would indicate - charge -
ANS-Thomsons experiment showed...
-position of a system of objects in a field
-must have a field and 2 or more objects - ANS-Potential Energy
- increase w size of particle, surface area - ANS-London Dispersion Forces
-atom was mostly empty space
-small dense positive nucleus in the center of the atom
-his drawing looked like jimmy neutron symbol - ANS-rutherfords experiment showed...
-Best available explanation of the evidence/ data/ observations
-Explains how/why
-makes testable predictions
-falsifiable
-may change over time - ANS-Scientific Theory
-change in matter means change in energy
-caused by change in forces
-conserved
-joule
-never lost- can be transferred or transformed - ANS-energy
-discovered electron
-Cathode ray tube- glass tube consisting of 2 electrodes under very low pressure, when high
voltage is applied cathode emits particles that move towards anode - ANS-JJ Thomson
-elements are composed of small indivisible, indestructible atoms
-all atoms of an element are identical and have the same mass properties
-diff elements have diff atoms
-compounds are combos of atoms
-chem rxns are rearrangements of atoms - ANS-Dalton's Atomic Theory
-Greeks- earliest atomic theory- not based on experimental evidence but on philosophy
-"Atomos" not to be cut
-Atoms were in constant motion - ANS-Development of Atomic Theory
-KE= 1/2mv^2
-energy associated w motion - ANS-Kinetic Energy
-particles could be deflected by electrical fields in a direction that would indicate - charge -
ANS-Thomsons experiment showed...
-position of a system of objects in a field
-must have a field and 2 or more objects - ANS-Potential Energy
