Atomic Theory
I coined the word
"atomos."
Who is Democritus?
This is the weighted average mass of the naturally occurring isotopes of an element.
What is the Atomic Mass?
This is what the atomic number of a stable neutral atom tells us.
What is the number of protons, the number of neutrons, and the number of electrons in an atom?
I am the electrons in the atom's outermost orbitals.
What are valence electrons?
This is the minimum amount of energy that can be gained or lost by an atom.
What is a quantum of energy?
This was defined when alpha particles did not respond as predicted in Rutherford's gold foil experiment.
What is the nucleus?
I am the sum of the number of protons and neutrons in the nucleus of an atom.
What is the Mass Number?
I am the symbol for silver.
What is Ag?
I am what an atom that has lost an electron is called.
What is a cation?
I am the value of the constant for the speed of light in a vacuum.
What is 3.00 x 10^8 m/s?
I am the principle that states that each electron occupies the lowest energy orbital available.
What is the aufbau principle?
I am C-14 and I have this many neutrons in my nucleus.
What is Carbon-14 with 8 neutrons?
F
What is Fluorine?
I am what is used to describe an electron in an atom.
What is a quantum number.
I am the equation for electromagnetic waves, which includes visible light.
What is c=lamba times nu (or f)?
I identified the first sub-atomic particle, the electron.
Who was J.J. Thomson.
(He also received the Nobel Prize in 1906 for this discovery!)
I am one-twelfth the mass of a carbon-12 atom.
What is an amu?
I
What is Iodine?
We are the orbital shapes that can be found in the 2nd quantum number l?
What are s, p, d, and f?
I am what a particle of light energy is called.
What is a quanta?
I state that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbital.
What is Hund's Rule?
I am K-40 and I have this many neutrons in my nucleus.
What is Potassium-40 with 21 neutrons?
I am the symbol for Plutonium.
What is Pu?
I am the equation that tells us the maximum number of electrons that can be found in a certain energy level of an atom.
What is 2n^2?
I am a way of visually determining an element because no two elements have the same.
What are spectral lines?
will also accept:
What are atomic emissions?