Naming
Periodicity
Properties
Bonding
Structures
Harmony
General
100

Name this molecule: CO2

Carbon dioxide

100

On the periodic table, in which directions does ionisation energy increase?

To the right and up.

100

What is one physical property of a chemical substance?

Melting point, Freezing point, Boiling point, Colour, Magnetism, Particle size, Density

100

What type of bond sees two or more atoms share their electrons?

Covalant

100

Name an allotrope of carbon.

Diamond, graphite, buckyball, carbon nanotube, graphene etc.

100

How many years have Aboriginal people inhabited Australia?

65,000 (Anderberg, 2024)

100

What is Taylor Swift's biggest selling album?

1989

200

Name this molecule: K2CO3

Potassium carbonate

200

Which element is the most electronegative on the periodic table?

Fluorine (3.98 on the Pauling scale)

200

What is one "odd" chemical property you would expect to find in Group I elements?

Highly reactive with water.

200

In the formation of an ionic bond, what happens to the electrons between the atoms?

Electrons are transferred from one atom to another.

200

Sodium chloride is an example of what type of chemical structure?

Ionic network

200

Who is Australia's closest neighbour geographically?

Papua New Guinea (~150km)

200

In What city is the Australian Formula One Grand Prix held?

Melbourne

300

What is the chemical formula for sodium nitrate?

NaNO3

300

On the periodic table, in which directions does electron affinity increase?

To the right and up.

300

With respect to melting point, which is the odd one out? Ionic network, Covalent network, Covalent molecular network, Metallic structure.

Covalent molecular network

300

What is the term for the attractive force that holds ions together in an ionic compound?

Electrostatic force

300

Name this molecular shape.

Bent

300

How many Aboriginal people have competed at the Olympic Games for Australia? (To the nearest 10)

60

300

What flag is this?

Indonesia

400

What is the chemical formula for sulfur hexafluoride?

SF6

400

Explain the trend in atomic radius on the periodic table.

Atomic radius decreases from left to right and increases down a group. This trend is due to increasing nuclear charge across a period and the addition of energy levels down a group.

400

What physical properties would you expect to find in a substance with short metallic bonds?

High thermal and electrical conductivity, High density, High melting and boiling point.

400

What type of bond would an electronegativity difference of 1 to 2 produce?

Polar covalent

400

Name this molecular shape.

Tetrahedral

400

Which language, other than English, is most spoken in Australia?

Cantonese/Mandarin

400

Who is Australia's most successful Olympian?

Emma McKeon (5 gold, 2 silver, 4 bronze)

500

What is the chemical formula for iron (II) phosphate?

Fe3(PO4)2

500

Which elements have the highest first ionisation energies?

The Noble Gases

500

What separation technique is used to remove dissolved salts from a liquid?

Distillation

500

What is the difference between a polar covalent bond and a nonpolar covalent bond?

Polar covalent bond = electrons are shared unequally between atoms.

Nonpolar covalent bond = the electrons are shared equally between atoms.

500

Why is carbon dioxide a linear shape?

The two lone pairs on each oxygen atom.

500

What percentage of Australians were born overseas? (to the nearest 5)

29.5%

500

What is the highest grossing movie of all time?

Avatar ($2.93 billion)