Atomic Theory
Who developed the term "atom"?
Democritus
Who developed the first periodic table?
Dmitri Mendeleev
What is the only subatomic particle with a negative charge?
Electron
Who developed the planetary model of the atom?
Niels Bohr
What is in row 5, column 4?
Zr (Zirconium)
What is Ionization Energy?
Energy needed to remove an electron(s) from an atom
Who stated the exact location and/or position of an electron is uncertain?
Werner Heisenberg
How did Mendeleev organize his periodic table?
Atomic Mass
An (or group of) atom that have gained one or more electrons, and have a corresponding charge?
Ion
Who incorrectly used a cathode ray tube and plum pudding to develop the first atom model?
J.J. Thomson
What is excluded in the "main-block elements" that encompass columns 1-18?
Lanthanides and Actinides
What is the term for a metal's ability to react to other elements or compounds, and increases top to bottom, decreases left to right?
Metal Reactivity
Who conducted an experiment that showed that atoms were mostly empty space?
Ernest Rutherford
Why aren't elements with 3-letter symbols acceptable?
They haven't been officially named by the IUPAC (International Union of Pure and Applied Chemistry)
In the chemical formula {Na+, P⁻³, Mg⁺², SO₄⁻²}, what is the charge for each element, in order?
-1, +3, -2, +2