Atomic Physics Intro

Indivisble atoms, Stated that all atoms are identical,

Compounds are combinations of 2 or more atoms,

A chemical reaction is a rearrangement of atoms.

Came up cathode rays (beams produced by a high voltage in a gas chamber towards the anode.)

He suggested that cathode rays must be streams of negatively charged particles. This meant there had to be something smaller within the atom that is negative.

demonstrate that cathode rays respond to electric fields just as negatively charged particles would. had discovered and named the electron

what is the speed of an electron in a cathode ray?

• v=E/B

• v=B/E

• v=d/t

• E=bv

equation for speed of electron was found because in the cathode ray tube the magnetic field force and the electric field force were ______

what did the v of electron in cathode ray originate from

• Eq=Bqv

• Ev=qBv

• Eq=B/qv

Who came up with charge to mass ratio

what formula was charge to mass ratio derived from?

• Fc = Fm

  (mv^2)/r = qvb

• Fm=2*pi*r

• Fc=Eq

  (mv^2)/r = Eq

v/rB is the formula for what

Who made raisin bun model?

• Dalton

• Crookes

• JJ thomson

• Milikan