Atomic Structure
Periodic Table
Physical and Chemical Properties
Classification of Matter
Lab Safety
100
2 subatomic particles that contribute to any elements weight / mass?
What are protons and neutrons
100
What makes the noble gases so unreactive.
Full valence shells.
100
During an experiment, after mixing 2 liquids together in a test tube, bubbles form, and the test tube gets hotter. Is this a physical or chemical change.
Chemical
100
Is a double double from tims considered a homogenous or heterogenous mixture.
Homogenous
100
Why do we wear safety goggles during most labs.
Protection against splash and concentration hazards for our eyes.
200
The subatomic particle that has a negative charge.
What is an electron
200
The "staircase" in the periodic table acts as a dividing line between metals and non metals, what third group exists at the staircase.
What are Metalloids.
200
Classify the change. (chemical or physical)
Ice melting
Wood burning
Rust Forming
Ice melting - physical
Wood burning - chemical
Rust forming - chemical
200
Why is water a compound
Water is made up of 2 H atoms and 1 O atom, meaning it can be broken down further.
200
What should you do if you spilt something acidic on your hands?
Wash your hands immediately, tell the teacher, aid in clearing / cleaning the station
300
Calculate the amount of neutrons in Bromine
45.
80 - 35 = 45.
300
Provide the name of group 1 of the periodic table, one quality of them, and one pattern as you go down the group.
Alkali Metals. Reactive. Increases in shell count as you go down.
300
Define physical and chemical changes.
A physical change affects the form or appearance of a substance but does not create a new one.
A chemical change results in the formation of a new susbtance with different properties.
300
Tell me the particle behaviour for each solids, liquids, and gases.
Solids - particles are tightly packed, definite shape and volume
Liquids - particles are close but can move and slide, no definite shape, definite volume
Gases - particles are far apart and can move freely, no definite shape, no definite volume
300
Name 3 different pieces of equipment used during labs, what are they used for?
Beakers for mixing / warming.
Graduated cylinders to measure liquids.
Bunsen burners for a controlled heat source.
400
If an element has 11 protons, 12 neutrons, and 11 electrons, what is its atomic mass, and element name.
What is Sodium. Atomic mass of 23.
400
Who created the periodic table that we use today
Dmitri Mendeleev
400
Why is boiling water considered a physical change, even though it involves heat.
A state change (liquid to gas), is not creating a new substance, it is still water.
400
Classify the following as an element, mixture, or compound.
Oxygen, Salt, Air
Oxygen - Element, only made of O2
Salt - Compound, chemically combined Na and Cl
Air - Mixture, blend of gases such as oxygen, nitrogen, and carbon dioxide.
500
What is wrong with this bohr diagram?
Far left electron should be on far right.
Remember 12, 3, 6, 9.
500
Who proposed that electrons orbit the nucleus in fixed energy shells
Niels Bohr
500
Is solubility a chemical or physical change.
Physical
500
Would you be able to seperate a compound of Na and Cl using a sifter.
No