WHMIS
Characterized as Gas Under Pressure; Heat may contents to explode; May explode if dropped
What is compressed gas?
The ability for something to bend.
What is Malleability?
He developed the “planetary model", where electrons circling the nucleus at different energy levels from the nucleus.
Who is Bohr?
These two subatomic particles are fond in Nucleus of an atom.
What are Protons and Neutrons
The last Column of the periodic table, filled with elements in a gaseous state.
What are the Noble Gases?
Characterized as may catch fire or explode in the presence of a spark or open flame
What is Flammable & Combustible?
The ability for a material to reflect light.
What is Luster?
Said electrons circling the center of the atom. Proposed that the atom is mainly empty space with a very small, heavy nucleus
Who is Rutherford?
This subatomic particle is found orbiting around the nucleus in different energy levels.
What are electrons?
The first column of the periodic table, very reactive.
What are the Alkali Metals?
Characterized as May cause damage to aquatic environments (kill plant & animal life)
What is Environmental Hazard?
The ability to conduct electricity, heat, or other forms of energy.
What is Conductivity?
First to suggest the smallest piece that you could divide something into is an “atom”.
Who is Democritus?
These two subatomic particles put together create the total mass of an atom
What are Protons and Neutrons?
The large middle section of the periodic table, holds very hard natural elements.
What are the Transition Metals?
Characterized as very unstable; May explode from shock, friction or increased temperature
What is Explosive/Reactive?
A materials ability to ignite and burn.
What is Combustibility?
“billiard ball model”. Said atoms are the same throughout and are indivisible.
Who is Dalton?
The last energy level to have electrons in it.
What is the valence level / valence shell?
The second last column of the periodic table, has a mix of all solids, liquids, and gases in their natural state.
What are the Halogens?
Characterized as contain harmful microorganisms; May cause disease
What is Biohazard?
The state or power of being reactive or the degree to which a thing is reactive.
What is Reactivity?
“raisin bun/ chocolate chip cookie” model”. Said negative electrons scattered throughout a positive area of the atom
Who is Thompson?
The total amount of electrons in each of the first 4 energy levels? __ __ __ __
What is 2, 8, 8, 18?
The second column of the periodic table, home to elements like strontium, barium, and calcium.
What is the Alkaline Earth Metals?