Properties and Classifications
This hazard looks like an O that has caught on fire
Oxidizing agent or oxidizer
He came up with the periodic table
Dmitri Mendeleev
K3N
Give an example of a metalloid
Boron, Silicone, Arsenic, Germanium, Antimony, Tellerium
What is the name given to the elements found in groups 3 - 12
Transition Metals
Pure substances can be divided into these 2 categories
Elements and Compounds
He defined elements as Pure Substances that cannot be Decomposed into simpler substances by means of a Chemical change. He's also known as the "Father of Modern Chemistry"
Antoine Lavoisier
What is the difference between Iron (II) oxide and Iron (III) oxide?
Iron (II) oxide is made using the Fe 2+ ion, and Iron (III) oxide is made using the Fe3+ ion.
This family group does not often react with other elements
The noble gases (or inert gases)
What would you use if you wanted to slow down or stop a chemical reaction
Add an inhibitor
This is another name for a Heterogeneous mixture
Mechanical Mixture
He inferred there were negatively charged particles in atom. He also came up with the plum pudding model
JJ Thompson
Name this compound, and tell if it is molecular or ionic: PF5
phosphorus pentafluoride, molecular
Give an element that ionizes to +3
Boron, Aluminum, Gallium
Give 3 examples of quantitative properties
Melting temperature, Boiling Temperature, Density, Viscosity, solubility
He was the first one to come up with an atomic model to describe matter
John Dalton
What is the name of this compound
CaCrO4
Calcium Chromate
They have the same number of electron shells
how many protons, neutrons and electrons does Lithium have?
Protons = 3 Electrons = 3 Neutrons = 4
What are 4 pieces of evidence to indicate a chemical change has taken place
Heat is produced or absorbed, The starting material is used up, There is a change in colour, A material with new properties forms, Gas bubbles form in a liquid, A precipitate forms in a liquid, The change is difficult to reverse.
He worked off of Rutherford's model and discovered the neutron
James Chadwick
Name 5 of the 7 Diatomic molecules
Hydrogen, Nitrogen, Oxygen, Florine, Chlorine, Bromine, Iodine
This element has 49 Neutrons
Krypton
This must be present in order for corrosion to take place, but it is not used up
Water