Have an account?
Skip to Content
11 questions
Show Answers
See Preview
- Multiple ChoicePlease save your changes before editing any questions.
Which Greek Philosopher believed that matter is composed of tiny particles called atoms?
Democritus
Aristotle
Phytagoras
Plato
- Multiple ChoicePlease save your changes before editing any questions.
What is the charge of the nucleus?
+
-
0
- Multiple ChoicePlease save your changes before editing any questions.
The Gold Foil Method through scattering of alpha particles was used to discover what part of the atom?
protons
electrons
neutrons
nucleus
- Multiple ChoicePlease save your changes before editing any questions.This particle is found in the nucleus and has no chargeNeutronProtonElectron
- Multiple ChoicePlease save your changes before editing any questions.This particle is found in the nucleus and has a positive chargeElectronProtonNeutron
- Multiple ChoicePlease save your changes before editing any questions.What scientist is best known for his "Plum Pudding" model of the atom?J.J. TomsonErnest RutherfordJohn DaltonDemocritus
- Multiple ChoicePlease save your changes before editing any questions.Place the following scientists in order, from earliest to latest:
A) Ernest Rutherford
B) J.J. Thomson
C) John DaltonB,C,AC,A,BA,C,BC,B,A - Multiple ChoicePlease save your changes before editing any questions.Which statement is true according to current thinking?An atom is mostly empty space.An atom is a collection of particles, so tightly packed that there is little empty space.The atomic nucleus is very mobile, and moves around inside a cloud of electrons.The size of atoms changes over time, pulsating from large to small to large again.
- Multiple ChoicePlease save your changes before editing any questions.What particle was used in the gold foil experiment?Beta ParticleAlpha particleGamma ray
- Multiple ChoicePlease save your changes before editing any questions.Most of the alpha particles went straight through the gold foil. This suggested that....There is no interference between alpha and gold.Most of the atom is made up of empty space.The alpha particles were very tiny.None of the above
- Multiple ChoicePlease save your changes before editing any questions.Some of the alpha particles fired at the gold foil were deflected at angles. This was due to...reflection of the alpha source when it it the fluorescent screen.The alpha particles hitting the gold nucleus.Repulsion forces between the positively charged nucleus and the positively charged alpha particles.A mis-firing of the alpha source