Atomic Theory History
This model of the atom included the discovery of electrons and showed the electrons scattered in a positively charged dough.
Plum Pudding
This subparticle is the smallest of the three found inside an atom
This is a prediction of what will happen in an experiment
What is a hypothesis?
A substance that contains 2 or more different types of atoms chemically combined.
What is a compound?
A mixture can be separated based on these type of properties
What is physical properties?
This model included the discovery of the nucleus. The scientist used a gold-foil experiment to discover the dense nucleus.
This part of the atom is where the majority of the mass of the atom is located
What is the nucleus?
What is the Atomic Theory?
Substance that contains 2 or more atoms that are not chemically bonded together.
What is a mixture?
What is magnetic?
This model showed electrons orbiting the nucleus in defined orbits or shells.
What is the Planetary or Solar System Model?
This subparticle is negatively charged
What is the electron?
This type of explanation is written after many experiments and explains WHY something happens in nature.
What is a Theory?
Oxygen, Carbon, and Hydrogen are all examples
What is an element?
A screen or sifter is the best way to separate beads from sand because of this property of the beads.
In this model the electrons are not in defined orbits because they move so quickly and unpredictably.
What is the Electron Clould Model?
This subparticle is has no charge or is considered neutral
What is a neutron?
This is written to describe constants that are observed in nature. It is often accompanied by mathematical formulas.
What is a Law?
A salad is considered this type of mixture because you can see the different parts
What is a heterogeneous mixture?
Sand and salt can be separated by putting the mixture in water, then pouring the new mixture through a filter because of this property of salt.
What is solubility?
This first model was accompanied by the first Atomic Theory
Electrons can be found in this area of the atom
What is in the cloud around the nucleus?
A theory can change if the following happens
What is new information is discovered due to scientists conducting experiments?
Saltwater is this type of mixture
What is homogeneous or solution?
Salt water is heated to a boil. The salt is left in the pot by itself after a few minutes because the water will
What is evaporate?