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12 Nov 2017

Q3. Which idea came out of Rutherford's gold foil experiment? a) Atoms contain protons and neutrons. b) Matter is composed of atoms. c) Elements have isotopes. d) Atoms are mostly empty space.

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use this vocabulary to fill in the blank. charge- a vacuum- small volume - atom- mass - nucleus- angle of defection- oil drop - mass to charge ratio- smaller particle - protons- electron- magnetic and electric fields- gold foil - neutrons-empty space-Thomson used --------to measure the -----of a cathode ray particle.Thomson's experiments are important because they showed that the-------------- is clearly composed of----------. The Milikan -------experiment is important because it determined the -----of an ---------.Using Thomson's ---------and Milikan's----------- the -----of an --------- was determined.Rutherofrd's ----------experiment is important because it clearly demonstrated that the ----------- is mostly-----------.Rutherford's results also showed that the most of atom's ---------------is located in the -------which has a very -------------.

Which of the following statements is false?

	Cations are formed when neutral atoms lose electrons to become positively charged.
	Anions are formed when neutral atoms lose electrons to become negatively charged.
	Isotopes of gold atoms have the same number of protons.
	Isotopes of gold atoms have the same number of electrons.
	Most of an atom's volume is empty space.