Scientist
The first person to term the word "atom".
Who is Democritus?
The scientist who came up with the plum pudding model.
Who is J.J. Thomson?
What the column numbers on the periodic table represent.
What is the number of valence electrons?
The subatomic particle(s) orbiting around the nucleus.
What are electrons?
The first person to propose an atomic theory based on scientific knowledge.
Who is John Dalton?
What is: the atom is mostly empty space with a small, dense, positively charged nucleus.
The element with the greatest ionization energy.
What is Helium (He)?
The atomic mass is made up of these subatomic particles.
What are the protons and neutrons?
The scientist who discovered the neutron.
Who is James Chadwick?
The thing that was incorrect about the planetary model of the atom.
What is: the electrons don't orbit the nucleus in defined orbits/energy levels?
The largest element.
What is Francium (Fr)?
The reason elements react with each other.
What is the octet rule/to achieve a full electron orbital?
The scientist who used the gold foil experiment.
Who is Ernest Rutherford?
The term coined by Bohr for the path of an electron.
What is an "orbital"?
The element with the greatest electronegativity.
What is Fluorine (F)?
The difference between isotopes and ions.
What is: isotopes have a different atomic mass because they have different number of neutrons and ions have a different atomic charge because they have a different number of electrons?
The scientist who described the behavior of electrons to be more like waves.
Who is Erwin Schrodinger?
The name of the experiment performed by James Chadwick.
What is the beryllium bombardment experiment?
The reason why atomic size decreases from left to right on the periodic table.
What are two of the four letters that represent shapes of electron paths in Schrodinger's Quantum Mechanical Model?
What is s, p, d, and f?