Atomic models
This is the first model proposed
When is 400BC
Who is Democritus
Researched this theory in the early 19th century
Who is John dalton
This is the first element discovered and documented
What is Phosphorous
The proton was discovered in this year
when/what is 1917
This is the Most commonly known model
The Bhor model
In his model:
*Electrons orbit the nucleus.
*Model based on the hydrogen atom
*Energy of the electrons is quantized.
Who is Niels Bohr
The Law of Conservation of Mass is defined as
What is:
mass is neither created nor destroyed
The electron was discovered on this date
when/what is 1897
This is the Least used model and might be called the worst
plum pudding model
Known as the first one to study atomic theory
Who is Democritus
The Law of Constant Composition is defined as
What is:
regardless of the source or method of formation, a chemical compound's components are always contained in a fixed ratio (by mass)
The Discovery of the Neutron
When/what is 1933
This is the most recent model accepted
What is the electron cloud
Created the Plum pudding model
J. J. Thomson
The Law of Multiple Proportions is defined as
What is:
if two elements form more than one compound between them, the masses of one element combined with a fixed mass of the second element form in ratios of small integers.
The discovery of the Nucleus
When/what is 1911
This model Was the first to include orbitals
What is the Schrodinger model
These scientist are known for orbitals and Rutherford’s Nucleus Theory
Who are
Ernest Rutherford
And
Louis de Broglie & (Schrödinger)
Atoms of a given element are identical in
What is size, mass, and other properties.
The first atomic model was created in this century
When was the 5th century