Bohr-Rutherford Diagrams
Physical/Chemical Properties
Classifying Matter
Density
Properties of periodic table
100
What are the 3 things needed when drawing a Bohr-Rutherford diagram?
Protons, neutrons & electrons
100
Explain the difference between a qualitative property and a quantitative property.
A qualitative property cannot be measured but can be identified by colour, smell or texture.
A quantitative property can be measured or counted, like mass, length & temperature
100
What is the scientific name of a mechanical mixture?
Hetergeneous mixture
100
What is density?
A measure of how many particles are packed into a given space.
100
How to figure out the number of neutrons in an element
Subtract the atomic number from the atomic mass
200
Draw Lithium as a Bohr-Rutherford Diagram
2 on inner shell
1 on valence shell
200
Classify whether this is a physical or chemical change:
Sugar, eggs, and flour are mixed and baked into cookies
Chemical change.
200
Hydrogen is an example of a...
Element
200
How is density calculated?
Dividing an object's mass by its volume
200
How many elements total in the periodic table?
118
300
Draw Neon as a Bohr-Rutherford diagram
2 on inner shell
8 on valence shell
300
List 2 physical properties of a candle
Colour-
Texture-
Shape-
Melting point-
Etc
300
CO2 is an example of a...
Compound
300
Calculate the density of sulfuric acid if 35.7mL of the acid has a mass of 65.17g
The density of the sulfuric acid is 1.83g/mL
300
What are the two main categories that separate elements of the periodic table?
Metals & Non-metals
400
Draw Chlorine as a Bohr-Rutherford Diagram
2 on inner shell
8 on middle shell
7 on valence shell
400
Classify whether this is a physical or chemical change:
Orange drink crystals are stirred into a pitcher of water
Physical change.
400
What are the 3 states of matter?
Solid, Liquid & Gas
400
What method is used to calculate the density of an object?
BONUS: What does each letter of the acronym stand for?
GUESA
G: given
U: unknown
E: equation
S: subsitute & solve
A: answer
400
How many atoms of each element are in this formula?
NaHCO3
Sodium: 1 atom
Hydrogen: 1 atom
Carbon: 1 atom
Oxygen: 3 atom
500
Draw Argon as a Bohr-Rutherford Diagram
2 on inner shell
8 on middle shell
8 on valence shell
500
Desrcibe several physical and chemical properties of Carbon Dioxide.
Physical: colourless, odorless gas at room temp, denser than air, nonflammable
Chemical: does not burn, does not support combustion, slightly acidic, reacts with water and bases
500
List the 4 main ideas of the particle Theory
1. All matter is made up of tiny particles
2. All particles of one substance are the same.
3. Particles are in constant motion.
4. There are attractive forces between particles.
500
Use the magic triangle formula to show the formulas for density, mass & volume
500
What group are Halogens in & what group are Noble Gases in?
Halogens: group 17
Noble Gases: group 18