Atomic Structure
Electrons are found in these regions around the nucleus.
What are electron shells/energy levels?
Atoms bond together to achieve this stable electron configuration.
What is a full outer shell/noble gas configuration?
All organic compounds contain this element.
Carbon
In fractional distillation, substances with lower boiling points are collected here. (What is at the top of the column?
LPG gas
This variable is deliberately changed in an experiment
What is Independent Variable?
This element has atomic number 12 and burns with a bright white flame.
HCl
Hydrogen chloride
This gas always exists naturally as diatomic molecules.
What is O2?
This type of ion has a positive charge
What is a Cation?
This gas is the simplest hydrocarbon (One carbon)
What is Methane?
Petrol has this boiling point range in degrees Celsius
What is 100-150°C?
These variables must be kept constant during an experiment
What is Controlled Variable?
This element has the chemical symbol Fe
What is Iron?
KBr
Potassium bromide
The second electron shell can hold this maximum number of electrons.
What is 8?
This process occurs when atoms transfer electrons to form bonds
What is Ionic bonding
Sodium chloride crystal forms due to this type of bonding.
Ionic bonding
This fossil fuel is separated into fractions like petrol and diesel
What is Crude oil?
Repeating an experiment multiple times improves this.
What is Reliability?
This element has atomic number 20 and is found in bones and teeth.
What is Calcium?
C₂H₆
What is Ethane?
Atoms that have gained or lost electrons are called these.
What are Ions?
When chlorine receives an electron from sodium, it becomes this type of ion. (a negative or positive?)
What is CL- ion
Covalent bonds form between metals and non-metals.
What is False?
This process removes carbon dioxide from the atmosphere, only possible thanks to PLANTS
What is Photosynthesis?
Aboriginal peoples used this technique to extract metals from ores
(Think of Minecraft)
What is Smelting?
This element has the symbol Cu, from the Latin "cuprum."
What is Copper?
SO₂
This element has atomic number 17 and forms table salt with sodium.
What is Chlorine?
Noble gases rarely form bonds because they have a _______________ electron configuration.
What is a complete outer shell?
The general formula for alkanes is this.
What is CₙH₂ₙ₊₂?
The enhanced greenhouse effect is primarily caused by increased levels of this gas
What is Carbon?
Traditional Aboriginal fire management practices are an example of this type of scientific knowledge. (State the name of this practise)
What is Indigenous/traditional ecological knowledge?
This noble gas has the symbol Ar
What is Argon?
CCl₄
Carbon tetrachloride