Atomic Structure
The mass of a proton or a neutron.
What is 1 amu?
The philosopher who first suggested that atoms exist.
Who is Democritus?
What is an atom of an element with a different number of neutrons than protons?
The way the modern periodic table is arranged.
What is by increasing atomic number?
The charges of each of the subatomic particles.
What is a proton has a charge of positive 1, a neutron has no charge, and an electron has a charge of negative 1.
The overall charge of the nucleus.
What is positive?
Dalton's big scientific contribution.
What is he proved the atom existed?
How to calculate mass number.
What is by adding the number of protons and neutrons?
The way that Mendeleev organized the Periodic Table.
What is by increasing atomic mass?
The scientist who discovered energy levels of electrons.
Who is Bohr?
How the electron cloud is structured.
What is in energy levels?
Thomson's contribution to our knowledge of atomic structure.
What is he proved the existence of the electron?
The definition of average atomic mass.
What is the average mass of all of the isotopes of an element that exist in nature?
What is the number of energy levels atoms of elements on that period have?
The number of neutrons in an average atom of iodine.
What is 74?
The name for electrons that exist in the highest energy level of an atom.
What is valence electrons?
The only inaccuracy in Rutherford's model of the atom.
What is Rutherford believed that electrons move about randomly in the electron cloud?
Calculate the mass number for an atom of Iridium that has 117 neutrons.
What is 194?
How to tell the number of valence electrons an atom of an element has.
What is by looking at the Group number?
The element on the Periodic Table that has the highest Ionization Energy
What is Fluorine?
The phenomena that provides the strongest evidence for the wave-particle duality of the electron.
What is an element's unique emission spectrum?
The six scientists in chronological order of their discoveries.
What is Democritus, Dalton, Mendeleev, Thomson, Rutherford, Bohr?
The isotope notation for an atom of bromine with 46 neutrons.
What is bromine-81?
What is Br-81?
What is (must be drawn on board)?
Describe the trend on the periodic table for atomic radius.
What is atomic radius increases as you move down a Group and decreases as you move from left to right across a Period?
Draw an electron dot diagram of Polonium.
See the board.