Progress of Atomic Theory Flashcards
What scientist said electrons are found in orbit?
Bohr
Each orbit has a specific ______
Energy level
What is Bohr’s model called?
Solar/Planetary model
What scientist discovered a dense positive nucleus?
Rutherford
Democritus’s Model Theory?
Solid sphere model
Who discovered 1st that there are small particles in the atom?
J.J. Thomson
What particle did J.J. Thomson discover?
Electrons/ e^-
Who discovered orbitals?
Shrodinger
Shrodinger’s model?
Quantum electron cloud
Difference between orbit and orbital?
Orbit= 2D Orbital= 3D
What is organized in orbitals?
Electrons
What did Lavoisier discover?
Law of Conservation of Matter
Who said all matter is made up of atoms?
Dalton
Who said in chemical reactions that atoms are neither created nor destroyed?
Dalton
What’s J.J. Thomason’s model called?
Plum pudding model
Electrons needed something positive to balance it out, what are they stuck in?
A positive spherical cloud
Rutherford’s model?
Gold-foil experiment
What are protons?
Small dense positively charged particles
Rutherford expected the mist alpha(+) to go through the foil, but it ______
Pointed in different ways from the protons
Protons are located in _____
The nucleus
Who made the s, p, d, f blocks?
Schrodinger
Who discovered the neutron?
Chadwick
Electrons charge is __\
-1
Protons charge is ___
+1
