Particle Theory
Classification of Matter
Physical & Chemical Properties
The Periodic Table
The Atom
100

Things that have mass and take up space.

What is matter?

100

A substance made up of only one type of atom.

What is a pure substance?

100

A characteristic that can be measured without destroying the original substance.

What is a physical property?

100

Vertical columns of elements in the periodic table.

What are groups or families?

100

Particles with a positive charge found in the nucleus.

What are protons?

200

All matter is made up of these that have empty spaces between them.

What are tiny particles?

200

A substance made up of two or more different atoms bonded together.

What is a compound?

200

Describes how a chemical reacts / behaves.

What is a chemical property.

200

Stable gases that have a full valence shell.

What are the noble gases?

200
Particles with a neutral charge found in the nucleus.

What are neutrons?

300

Particles are in constant random blank.

What is motion?

300

A mixture that appears as one phase (uniform)

What is a homogeneous mixture?

300

Colour, odour, malleability, melting point, and solubility.

What are physical properties?

300

Extremely reactive metals.

What is the alkali metals?

300

Particles with negative charge found in orbits around the nucleus.

What are electrons?

400

The particles of a substance moves faster as this increases.

What is temperature?

400

A mixture that appears as 2 or more phases.

What is a heterogeneous mixture?

400

Reacts with water, corrodes, flammable, acid or base.

What are chemical properties?

400

Extremely reactive non-metals.

What are the halogens?

400

The number of protons in an atom which determines the element.

What is the atomic number (Z)?

500

The forces of attraction are stronger when particles are blank together.

What is closer?

500

A heterogeneous mixture that appears homogeneous because small particles are suspended in the solution.

What is a colloid?

500

New colour, new odour, new gas, new solid, heat/light is produced.

What are chemical changes?

500

Good conductors of heat and electricity.

What are the alkaline earth metals?

500

The symbol A, which represents the number of protons and neutrons in the nucleus of an atom.

What is the Mass number/Atomic mass (A)?

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