Atomic Theory
Periodic Table
Physical/Chemical Properties
Physical/Chemical Change
Periodic Table Trends
100
positive charge
Does proton have a negative or positive electric charge ?
100
Top to bottom
Periods increase in atomic number from :
100
Chemical Property.
Is flammability considered a chemical or physical property ?
100
Burning wood
What is an example of a chemical change ?
100
Mass of an atomic particle, sub-atomic particle, or molecule
What is atomic mass ?
200
Has no net electric charge
Does neutron have an electric charge ?
200
The lanthanide elements
What are the elements with atomic numbers from 58 to 71 in the periodic table called ?
200
Divide the mass of the subject by the volume of the subject.
What is the procedure in calculating density ?
200
Chemical change
When a substance combines with another to form a new substance, this is called a ?
200
Ionization energy is the energy required to remove an electron from a gaseous atom or ion .
What is Ionization Energy ?
300
Matter is composed of discrete units called atoms
What is atomic theory ?
300
Atomic Mass
What equals the number of Neutrons + Protons ?
300
Chemical property
Would bleaching ability be considered a chemical or physical property ?
300
Physical change
Changes affecting the form of a chemical substance, but not its chemical composition is considered a ?
300
Atomic Radius, Electron Affinity
What are two of the periodic table trends ?
400
Smaller particles called atoms
What is matter made out of ?
400
118
How many different elements do scientists currently know of ?
400
Measurement of how much mass is contained in a given volume, or how tightly packed the matter is .
What is density ?
400
Chemical reaction where the reactants from products that, in turn, react together to give reactants back.
What happens in a Reversibilty Reaction ?
400
Decreases
The ionization energy of alkali metals ____ as you go down the group ?
500
24.31
What is the atomic mass for Magnesium ?
500
1 through 92, (except for numbers 43 and 85)
How many natural elements are in the periodic table ?
500
Physical property
What do scientists use Lustre to describe ?
500
Chemical .
Is bubbles of gas forming considered a chemical or physical change ?
500
Tendency of a substance to undergo chemical reaction, either by itself or with other materials and to release energy.
What is the definition of Reactivity ?
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