Contributors
Creator of the Bohr Model
What is Niels Bohr?
Particle found in a nucleus with a positive charge. Number of these gives atomic number.
What is a proton?
He discovered Dalton’s Law of Partial Pressures
What is John Dalton?
1.All matter is composed of extremely small particles called atoms.
2. Atoms of a given element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties.'
3.Atoms cannot be subdivided, created or destroyed.
4.Atoms of different elements combine in simple whole-number ratios to form chemical compounds.
5.In chemical reactions atoms are combined separated or rearranged.
Grandpapa of Atomic Theory
What is Democritus?
the smallest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons.
What is an atom?
He discovered the electron by experimenting with Crookes
What is J.J Thompson?
What are the three parts of an atom?
What is an electron, neutron, and proton?
born in 1856 in Cheetham Hill, Manchester, England and a Physician and Noble Laureate in Physics
What is J.J Thompson?
A particle found in the nucleus of an atom. It is almost identical in mass to a proton, but carries no electric charge.
What is a neutron?
He discovered the study of radioactivity
What is Ernest Rutherford?
Which one has positive electric charge?: An electron, neutron, or proton?
born on August 30, 1871, in Nelson, New Zealand and discovered the study of radioactivity.
What is Ernest Rutherford?
the region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital.
What is an electron cloud?
What is James Chadwick?
Which one has no electric charge?: A proton, neutron, or electron?
What is a neutron?
Who was Democritus's teacher?
What is Leucippus?
The physical theory of the composition of matter stating that common materials are composed of molecules, which are composed of atoms, which are composed of nuclei and electrons. It holds that the properties of composite entities, such as their structure and behavior, arise from the properties of their components.
What is the Atomic Theory?
His studies were based off the Quantum Theory and invented a model named after himself that shows energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another.
What is Niels Bohr?
“Everything is composed of “atoms”, which are physically, but not geometrically, indivisible.” Who said this?
What is Democritus?