Unit 1 Flashcards
Which scientist is responsible for the Law of Conservation of Mass?
Lavoisier
Which scientist is responsible for the Law of Definite Proportions?
Proust
Who discovered the first atoms, “atomos”
Democritus
The scientist responsible for the Law of Multiple Proportions?
Dalton
Who discovered the Electron?
J.J. Thomson
The scientist behind the oil drop experiment
Millikan
Who discovered neutrons?
James Chadwick
Who created/propositioned the first model of the atom?
Niels Bohr
What is the law of conservation of mass?
Mass cannot be created or destroyed.
What is the Law of Constant Composition(definite proportions)?
pure compounds always have the same % of a given element
What experiment lead to the theory of the nucleus?
Gold foil experiment
What makes up the atomic number?
The number of protons
What is the electron cloud/domain?
The potential, or probable, position of an electron in an atom
What are the familiar orbitals?
S, P, D, and F
What shape are S orbitals?
Spherical
