Atomic Structure/ Periodic Table Flashcards
Dalton said that atoms combine in what type of proportions to form compounds
Fixed
Th Greek philosopher who first coined the idea of the atom
Democritus
The planetary model stated that
Electrons revolve around the nucleus
The chemical properties of an atom are determined by the
Atomic number
Who said that two electrons can occupy each orbital and must have opposite spins
Pauli
Who said that each orbital must be filled before pairing them up (bus seat rule)
Hund
Who said that electrons will be added to the lowest energy level first
Aufbau
A charged atom is referred to as an________ and had gained or lost ________ and has the same number of __________.
Ion, electrons, protons
The quantum model is similar to
Bohr’s atom (planetary model)
Who made the planetary model
Bohr
Who made the plum pudding model
Thomson
This model is mostly empty space
Rutherford
This model deals with the probability of finding electrons
Quantum
They believed that basic metals could be turned into gold
Alchemists
Greek philosopher believed that the universe was made up of tiny particles
Democritus
Devised postulates about atomic make up
Dalton
Stated that compounds are created in fixed proportions
Dalton
Where is most of the mass of an atom found
Nucleus/center
Found the neutron
Chadwick
Stated that atoms can’t be created or destroyed
Dalton, Democritus
Found the electron
Thomson
Credited for finding the proton
Rutherford
Experimented with cathode rays
Thomson
Main components of alchemy
Earth, air, water, fire
