History of Chemistry
This is the maximum velocity of the Universe.
The speed of light (c)
In a double bond, how many electrons are shared?
4
Niels Bohr created which Atomic design that we still use today, even though it is inaccurate?
Orbital Model (Solar System Model)
These are the lowest energy waves on the electromagnetic spectrum
Radio
Which two values make up the elements mass?
Protons and Neutrons
What is the force behind Ionic bonding?
Opposite Charges
Which Scientist conducted an experiment that determined the structure of an atom, including the locations of the particles with Gold.
Ernest Rutherford
As wavelength decreases, ______ increases
frequency
Atoms of the same element always have the same number of protons. However, sometimes different atoms of the same element can have a different number of neturons. These different varieties are called this.
Isotopes
Alkalis and Halogens
Which Scientist discovered the mass of an electron?
J.J. Thomson
Energy is calculated by multiplying frequency and ___________.
Planck's Constant
What are the names of the Metalloid Elements?
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium
Which group has the lowest electronegativity values?
Noble Gases
Which scientist is credited with designing the modern Periodic Table?
Dmitri Mendeleev
In a stable element, what two items must be balanced?
The value of Planck's Constant is ________
6.62 x 10-34 J(s)
Which direction does Atomic Radii Trend on the periodic table?
Increases from Top to Bottom, and Right to Left
Decreases from Bottom to Top, and Left to Right
Two substances have an electronegativity difference of 0.25. What is the predicted bond type?
Covalent / Metallic