Physical vs. Chemical
Bonding
Periodic Table
Theories of the Atom
WHMIS & Lab Safety
100
This property describes how shiny a substance is
What is lustre?
100
What type of compound is formed when two non-metals share electrons?
What is a covalent (or molecular) compound?
100
These are the smallest building blocks of matter and cannot be broken down chemically
What are elements?
100
He proposed atoms were indivisible and named them “atomos.”
Who is Democritus?
100
What does WHIMS stand for?
Workplace Hazardous Materials Information System
200
These two types of observations describe physical properties
What are qualitative and quantitative?
200
What is the name of the compound formed from sodium and chlorine?
What is sodium chloride?
200
This type of substance is made up of two or more elements chemically combined
What is a compound?
200
This scientist discovered electrons using a cathode ray tube
Who is J.J. Thomson?
200
This type of gas is stored under pressure and may explode if heated
What is compressed gas?
300
A chemical property describes a substance’s ability to do this.
What is undergo a chemical change / form a new substance?
300
What is a cation and anion?
CATION: What is a positively charged ion formed when an atom loses electrons?
ANION: What is a negatively charged ion formed when an atom gains electrons?
300
These elements are found on the left side of the periodic table and are good conductors
What are metals?
300
Rutherford’s gold foil experiment led to the discovery of this part of the atom.
What is the nucleus?
300
This WHMIS symbol warns of materials that can catch fire easily
What is flammable?
400
This is a sign that a chemical change has occurred.
What is a color change / smell / bubbles / precipitate / heat/light?
400
What is the mnemonic or molecules used to remember the seven diatomic elements?
What is “Ho-Ber-Fink-Uhl”?
OR
What is H₂, O₂, N₂, F₂, Cl₂, Br₂, or I₂?
400
These two particles are found in the nucleus.
What are protons and neutrons?
400
This scientist discovered the neutron.
Who is James Chadwick?
400
This WHMIS symbol represents organisms or toxins that can cause diseases in humans or animals
What is biohazardous infectious materials?
500
Name two type of physical changes
What is a change of state / shape / size / dissolving?
500
How many atoms are in 3NH₄NO₃?
What is 27?
500
To find the number of neutrons, subtract the atomic number from this.
What is the mass number?
500
Bohr suggested electrons orbit the nucleus in fixed paths called ____.
What are energy levels or shells?
500
These materials can cause serious chemical burns and damage to metals
What are corrosive materials?