Atoms

John Dalton

________ proposed that all matter is made up of particles called atoms and all atoms of an element are the same, and atoms of different elements are different.

Protons

________- a positively charged particle that is found in an atoms nucleus.

Neutrons

________- a neutrally charged particle that is found in an atoms nucleus.

Greek philosopher Democritus

________ proposed that all matter can be decided into smaller pieces until there is a single indivisible particle is reached- (400 BCE)

Electrons

________- a negatively charged particle circling around the atoms nucleus.

JJ Thompson

________ discovered that small negatively charged particles could be emitted by very hot materials and are attracted to the positive ends of a circuit.

Bohr

The suckers is surrounded by a cloud of negatively charged electrons of an atom and has employ space between them. ________ says that electrons orbit the nucleus and each electron in an orbit has a definite amount of energy.

Ernest Rutherford

________ tested Thompsons model and predicted that of positive and negative charges were distributed throughout atoms, then tiny positively charged particles shot at a thin piece of golden foil would pass through the foil.

Scientific theory

Keywords: ________- an expression of our best understanding of a phenomenon, based on scientific reasoning and /or evidence.

Thomass model

Who was called "plum pudding? Answer with a single words or term.

Electrons

________ can not be between orbits but can jump from orbit to orbit (but do note that there is no specific course that an electron must take and that it is random and different every time, but it can still jump to another ________ orbit instead)